ライフサイエンスコーパス: intercourse

1 v "rectal urgency," "intercourse" v "vaginal intercourse").

2 dosed via artificial phallus after simulated intercourse.

3 women reporting a history of receptive anal intercourse.

4 e used up to 5 days after unprotected sexual intercourse.

5 reduction of HIV transmission during sexual intercourse.

6 cy virus (HIV) infection during heterosexual intercourse.

7 mens of vaginal fluid taken before and after intercourse.

8 n of a woman or a man by HIV-1 during sexual intercourse.

9 e covariates at the beginning of unprotected intercourse.

10 deformities that impede satisfactory sexual intercourse.

11 partnerships, and condom use at last sexual intercourse.

12 e application of inhibitory compounds before intercourse.

13 her respondents used a condom at last sexual intercourse.

14 est risks were associated with CSA involving intercourse.

15 s, were statistically attributable to sexual intercourse.

16 ed (P < 5 x 10(-8)) with age at first sexual intercourse.

17 er enteric gram-negative rods (P=.001) after intercourse.

18 s of cases with early than late age at first intercourse.

19 s of couples reported similar frequencies of intercourse.

20 ys, and 6-8 days) an index episode of sexual intercourse.

21 . coli vaginal colonization following sexual intercourse.

22 and cotwin report: nongenital, genital, and intercourse.

23 ed with a history of recent unprotected anal intercourse.

24 se of a diaphragm plus spermicide and sexual intercourse.

25 oportion reported unprotected receptive anal intercourse.

26 interaction, and increased inhibition during intercourse.

27 rt, 30.4% reported any CSA and 8.4% reported intercourse.

28 nt responded similarly regarding penile-anal intercourse.

29 lacebo film, inserted into the vagina before intercourse.

30 (65.9 percent) had erections sufficient for intercourse.

31 a way to prevent pregnancy after unprotected intercourse.

32 l Function Questionnaire), and resumption of intercourse.

33 virus across mucosal surfaces during sexual intercourse.

34 rication, orgasm, satisfaction, and painless intercourse.

35 ast 2,300 IU of HCV for the duration of anal intercourse.

36 cordance were observed 24 hours after sexual intercourse.

37 reporting a history of anal receptive sexual intercourse.

38 transmitted by injecting drug use and sexual intercourse.

39 couple members, and because of extra-couple intercourse.

40 on of HPV in the vagina before first vaginal intercourse.

41 stribution in the female genital tract after intercourse.

42 ransfusion (0.76, 0.59-0.99) or heterosexual intercourse (0.69, 0.56-0.84), but not among couples in

43 month and first reported satisfactory sexual intercourse 1 week later (despite advice to the contrary

44 th lack of sexual competence at first sexual intercourse (1.90 [1.14-3.08]), reporting higher frequen

45 t-reported functional erections suitable for intercourse 2 years following prostate cancer treatment.

46 d sex with men who reported unprotected anal intercourse (2.01/100 PY, 95% CI: 1.54, 2.63), participa

47 outcomes included (1) any unprotected sexual intercourse, (2) STI diagnoses, and (3) any unsafe injec

48 8.1%; 1.34 [1.11-1.62] for male), and sexual intercourse (25.1% vs 15.1%; 1.23 [1.09-1.39] for male a

49 ng those reporting condomless receptive anal intercourse (416/519 [81%] vs 809/1084 [75%], p=0.003) a

50 hild sexual assault (8.0%), and forced first intercourse (7.3%).

51 .77) and increased among couples with recent intercourse (adjPRR = 1.26; 95% CI = 1.04-1.53).

52 dence increased with alcohol use with sexual intercourse (adjusted incidence rate ratio [adjIRR], 1.9

53 menopausal dyspareunia can have comfortable intercourse after applying liquid lidocaine compresses t

54 -assessed twice-per-week tampon insertion or intercourse, all patients received lidocaine for 2 month

55 of the mucus by alkaline semen, after sexual intercourse, allows virions to cross the mucus layer and

56 Engaging in very active intercourse also increased the risk (OR = 1.7, 95% CI: 1

57 an-American race, unprotected receptive anal intercourse, an HIV-positive male sex partner, and six o

58 examine risk associated with receptive oral intercourse, analyses were done in a subgroup of men who

59 ed the relation between age at first vaginal intercourse and a positive nucleic acid amplification te

60 week period, including 24 hours after sexual intercourse and after 48 hours of abstinence.

61 ive if used as soon as possible after sexual intercourse and before ovulation.

62 Women used fertility monitors to time sexual intercourse and digital pregnancy tests.

63 The ages of puberty, first sexual intercourse and first birth signify the onset of reprodu

64 pregnancy, such as history of forced sexual intercourse and lack of connectedness with parents, are

65 Prospective data showed less frequent intercourse and more condom use but reliability remained

66 spite the high frequency of unprotected anal intercourse and potential HIV-1 exposure, the vast major

67 Frequency of intercourse and reliability of reporting within couples

68 elation between lifetime frequency of sexual intercourse and risk of prostate cancer was apparent.

69 Unprotected intercourse and seminal discharge are powerful activator

70 because discussion of issues such as sexual intercourse and sexuality make people feel uncomfortable

71 cipants rarely used protection during sexual intercourse and some symptomatic subjects apparently acq

72 ral population that is transmitted by sexual intercourse and that replicates in infected individuals

73 udy was to assess how characteristics of the intercourse and the couple relate to semen exposure duri

74 d data on the timing and frequency of sexual intercourse and the timing of ovulation.

75 ess the relation between age at first sexual intercourse and these STIs and to examine variation by c

76 common sexual practices, especially vaginal intercourse and time since last intercourse, but was low

77 y 50% of patients in Group I desired to have intercourse, and 54% of the patients in Group II desired

78 Ten patients reported unprotected anal intercourse, and 7 reported "club-drug" use, including m

79 Child sexual assault, forced first intercourse, and adult sexual assault by non-partners we

80 a breast-feeding by infected mothers, sexual intercourse, and contaminated blood products.

81 minority of teenagers have unprotected first intercourse, and early motherhood is more strongly assoc

82 tners, spermicide use, more frequent vaginal intercourse, and less frequent use of condoms.

83 discharge, yet more vaginal dryness, painful intercourse, and loss of sexual interest.

84 orted fewer sexual partnerships, later first intercourse, and substantially lower prevalence of diagn

85 tobacilli include exposure to semen, vaginal intercourse, and the presence of lactobacilli of the sam

86 e in blocking HIV transmission during sexual intercourse; and, in three randomised trials, male circu

87 CI, 0.48-0.92) and condom use at last sexual intercourse (AOR = 0.75; 95% CI, 0.57-0.98).

88 5; P = .004), and ever having receptive anal intercourse (AOR, 2.51; P < .001).

89 having an STI among 24-year-olds with first intercourse at age 13 versus those with first intercours

90 ving an STI for an 18-year-old who first had intercourse at age 13 were more than twice those of an 1

91 twice those of an 18-year-old who first had intercourse at age 17 (prevalence odds ratio = 2.25, 95%

92 ntercourse at age 13 versus those with first intercourse at age 17 were the same (prevalence odds rat

93 at 12- month follow-up) and less unprotected intercourse at all follow-ups than did control group (ad

94 fantasies, masturbated, or engaged in sexual intercourse at least once a week increased two to three

95 rs at interview reporting first heterosexual intercourse at younger than 16 years was 30% for men and

96 or greater than that attained during sexual intercourse (average of 2.5 to 3.3 METS).

97 ficantly more serodiscordant condomless anal intercourse, bacterial sexually transmitted infections,

98 The proportion of women reporting first intercourse before 16 years increased up to, but not aft

99 d with unplanned pregnancy were first sexual intercourse before 16 years of age (age-adjusted odds ra

100 ociated with reporting of first heterosexual intercourse before 16 years of age, same-sex experience,

101 2.2-6.5]), sexual risk behaviors (eg, first intercourse before age 15 years [for 1997, OR, 8.2; 95%

102 e in the proportion of women reporting first intercourse before age 16 years does not appear to have

103 mulated models in this paper illustrate that intercourse behavior can have a large impact on time to

104 Unprotected sexual intercourse between regular heterosexual partners could

105 also increased with decreasing age at first intercourse, but this effect disappeared after adjusting

106 ally vaginal intercourse and time since last intercourse, but was lower for condom use.

107 rotected (without condom) first heterosexual intercourse by age 16 years.

108 ction through abrasion of the skin or sexual intercourse causes benign warts and sometimes cancer.

109 Among women who reported anal intercourse, cervical HPV (adjusted odds ratio [aOR], 5.

110 Among women who reported no anal intercourse, cervical HPV (aOR, 4.7 [95% CI, 3.7-5.9]),

111 he increasing intervals between first sexual intercourse, cohabitation, and childbearing means that,

112 asked questions regarding first heterosexual intercourse, communication about sex, pregnancy, and sex

113 ted in vitro in women practising unprotected intercourse, compared with those having protected sex or

114 HPV was higher among women who reported anal intercourse, compared with those who did not (43.4% vs 2

115 Test (SDET) score: condomless receptive anal intercourse (CRAI) with an HIV-positive MSM (3 points),

116 ine leukocyte esterase, symptoms, and sexual intercourse daily for 3 months.

117 tion of individuals reporting receptive anal intercourse decreased (p=0.004).

118 decreased libido, vaginal dryness, pain with intercourse, decreased genital sensation and difficulty

119 TI strain carriage, bacteriuria, pyuria, and intercourse dramatically increase over the days precedin

120 ple sex partners within <30 days, and sexual intercourse during menses in the previous 6 months; cond

121 FSW who engaged in sexual intercourse during menses were less likely to have M. ge

122 e partners used condoms for all instances of intercourse during the eight months before testing, as c

123 7, 95% CI: 1.1, 2.5), having frequent sexual intercourse during the past 4 months (HR = 1.5, 95% CI:

124 on in the mean frequency of unprotected anal intercourse during the previous 2 months (baseline 1.68

125 %) of participants reported unprotected anal intercourse during the previous 6 months.

126 on intimacy and sexual activities other than intercourse (e.g., 'flexible coping').

127 rlier puberty timing on earlier first sexual intercourse, earlier first birth and lower educational a

128 We conclude that seminal fluid introduced at intercourse elicits expression of proinflammatory cytoki

129 e (p<0.0001); condoms were used in all eight intercourse events after positive results compared with

130 Couples reported engaging in sexual intercourse for a median of 1.7 years (range, 0.1-49 yea

131 tal screening of men who have receptive anal intercourse for Neisseria gonorrhoeae (GC) and Chlamydia

132 In multivariate analyses, intercourse frequency (odds ratio (OR) = 1.14 per weekly

133 the recurrence group had significantly lower intercourse frequency and physical functioning compared

134 y ratios, especially under conditions of low intercourse frequency or low fecundity.

135 for orgasmic function, sexual satisfaction, intercourse frequency, relationship intimacy, marital fu

136 The recipient reported regular sexual intercourse from 3 months after the operation.

137 t interval between menarche and first sexual intercourse (FSI).

138 Frequency of sexual intercourse (> or =1 sex act per week) was associated wi

139 transmission per act through receptive anal intercourse has a central role in explaining the disprop

140 No universal trend towards earlier sexual intercourse has occurred, but the shift towards later ma

141 e detected in the vagina before first sexual intercourse, highlighting the need for early vaccination

142 nts were less likely to report having sexual intercourse in the 3 months after intervention than were

143 Users of lidocaine reported less pain during intercourse in the blinded phase (median score of 1.0 co

144 reported number of occasions of heterosexual intercourse in the past 4 weeks had reduced since Natsal

145 ive risks for one, three, and five days with intercourse in the past week, 1.37, 2.56, and 4.81 in th

146 ously or were heterosexual reporting no anal intercourse in the past year, and 1861 did not provide s

147 16 years, significantly fewer girls reported intercourse in the peer-led arm than in the control arm,

148 as using a condom at each occasion of sexual intercourse in the previous 12 mo; (b) recent condom use

149 lly experienced women who reported no sexual intercourse in the previous 3 months (secondary abstinen

150 -sex intervention group reported less sexual intercourse in the previous 3 months at 6- and 12-month

151 fovir for MSM who had condomless anal sexual intercourse in the previous 3 months, a negative HIV tes

152 ped off, leaked, or were not used throughout intercourse in the previous 3 months.

153 pyelonephritis risk were frequency of sexual intercourse in the previous 30 days (odds ratio, 5.6 [95

154 types increased with decreasing age at first intercourse in this predominantly monogamous population,

155 causal consequences of earlier first sexual intercourse include reproductive, educational, psychiatr

156 94, with a first UTI due to E. coli, vaginal intercourse increased the risk of a second UTI with both

157 Unprotected intercourse induces widespread changes in female reprodu

158 a male, vaginal intercourse, receptive anal intercourse, injection drug use, and past HIV testing, a

159 men exposed to the virus by insertive penile intercourse is likely to help with the rational design o

160 Although unprotected heterosexual intercourse is recognized as the primary mechanism susta

161 Thus, earlier initiation of sexual intercourse is strongly associated with STIs for older a

162 Sexual intercourse is the major means of HIV transmission, yet

163 1992 and 1993; whereas for unprotected oral intercourse it ranged between 60% and 90% in the 1984 th

164 nal application will likely be used for anal intercourse, it is important to evaluate these products

165 ion were more likely to use a condom at last intercourse, less likely to have a new vaginal sex partn

166 opositivity was associated with early sexual intercourse (</=13 vs. >15 years; odds ratio [OR], 2.50;

167 Unwanted sexual intercourse (<16 years) was associated with domestic vio

168 s at baseline (all had abstained from sexual intercourse, masturbation, and vaginal product use for 7

169 es in women who report never having had anal intercourse may facilitate HPV exposure.

170 Unprotected sexual intercourse might result in alloimmunisation stimulated

171 of the patients in Group II desired to have intercourse more frequently, Group I patients had signif

172 independently associated with receptive anal intercourse (odds ratio [OR], 2.0; P<.0001) during the p

173 rate per 10 000 sex acts (episodes of sexual intercourse) of 8.9 vs 1.5, respectively (P<.001).

174 HIV uninfected, not having unprotected anal intercourse, older age, and being on highly active antir

175 act from pathogens, but the impact of sexual intercourse on defense is unknown.

176 sed to HIV through anal or vaginal receptive intercourse on multiple occasions over many years.

177 Effects of a single episode of intercourse on vaginal flora and epithelium were examine

178 t that EBV transmission occurs during sexual intercourse or closely associated behaviors.

179 inence intervention stressed delaying sexual intercourse or reducing its frequency; safer-sex interve

180 three HIV clinics who gave a history of anal intercourse or were women at high risk for Neisseria gon

181 MC, P = .02), and cannabis use during sexual intercourse (OR 2.8[1.2; 6.7], P = .02) were the only fa

182 ucation (OR = 0.3, 95% CI: 0.11, 0.70), anal intercourse (OR = 10.5, 95% CI: 2.01, 54.7, STD history

183 (OR = 7.6; 95% CI, 1.9-30.5), insertive anal intercourse (OR = 5.6; 95% CI, 1.0-32.8), and sharing ne

184 95% CI, 1.08 to 3.50), had never had sexual intercourse (OR, 11.30; 95% CI, 2.56 to 49.91), did not

185 race/ethnicity, and having unprotected anal intercourse (OR, 2.98; 95% CL, 1.20-7.45) or gonorrhea (

186 or smoking, race, time since or frequency of intercourse, or presence or quantity of vaginal bacteria

187 s condom use during every episode of vaginal intercourse; other outcome measures were sexual behavior

188 ices (P < .001, for both), and having sexual intercourse (P < .001, for both).

189 Hot flashes (P = .0007), pain with sexual intercourse (P = .02), and difficulty with bladder contr

190 an other women to report unprotected vaginal intercourse (p = 0.026) or stimulant drug use (p = 0.026

191 was associated with a later age of onset of intercourse (P<.001).

192 age, number of sexual partners, age at first intercourse, parity, smoking, and screening.

193 The risk (OR) associated with receptive oral intercourse partner increase was 1.05 (95% CI 1.0-1.11).

194 The odds ratio (OR) per receptive anal intercourse partner increase was 1.05 (95% confidence in

195 of men who reported no or one receptive anal intercourse partner.

196 4.6] for >/= 4 partners), and number of anal intercourse partners (aOR, 1.9 [95% CI, 1.1-3.3] for >/=

197 r association with the number of male sexual-intercourse partners.

198 Because intercourse patterns in the menstrual cycles may vary su

199 Depending on the research hypothesis, intercourse patterns may be considered as a potential co

200 cy can be used to account for the effects of intercourse patterns.

201 female partners among men who resumed sexual intercourse prior to wound healing.

202 abetes, functional disability, recent sexual intercourse, prior history of urogynecologic surgery, ur

203 in the mean percentage of occasions of anal intercourse protected by condoms (baseline 44.7%; follow

204 and 40% without a history of receptive anal intercourse (RAI)--were evaluated with a behavioral ques

205 V rectal gel before and after receptive anal intercourse (RAI; or at least twice weekly in the event

206 67 (75%) involved patients, including sexual intercourse, rape, sexual molestation, and sexual favors

207 er, race/ethnicity, sex with a male, vaginal intercourse, receptive anal intercourse, injection drug

208 for many goals (eg, delay in onset of first intercourse, reduction in number of sexual partners, inc

209 hould be made of the timing and frequency of intercourse relative to ovulation.

210 eption increased with declining age at first intercourse; reported by 18% of men and 22% of women age

211 in the HMO cohort, P=0.04) and recent sexual intercourse (respective relative risks for one, three, a

212 (p=0.060), as were median IIEF-15 scores for intercourse satisfaction (p=0.454), sexual desire (p=0.6

213 les were assessed for recency of last sexual intercourse, sexual activity in the prior year, and cont

214 ly, reports of condom use during last sexual intercourse showed a non-significant 4.3% increase for f

215 %) (92/330) of PHIV(+) youth reported sexual intercourse (SI) (median initiation age, 14 years).

216 ient, must be used before each act of sexual intercourse, so a method that provides protection over t

217 condom appears to be a function of user- and intercourse-specific characteristics.

218 ion was found with the year when unprotected intercourse started (a period effect) than with the year

219 treated with alprostadil (64.9 percent) had intercourse successfully at least once, as compared with

220 High rates of concordance shortly after intercourse suggest that some DNA detections in the geni

221 d for all births conceived after unprotected intercourse that began during 1961-93, excluding contrac

222 by questions on time periods of unprotected intercourse that do not end with conception, to avoid bi

223 such as time to conception and frequency of intercourse, the correlations were high to moderate (r =

224 aception between 72 h and 120 h after sexual intercourse, there were three pregnancies, all of which

225 are initiated within 72 hours of unprotected intercourse, they reduce the risk of pregnancy by 75%.

226 of adolescent females without prior vaginal intercourse to examine the frequency of detection of vag

227 data about the users and characteristics of intercourse to predict failure accurately.

228 d by centre and time from unprotected sexual intercourse to treatment, with allocation concealment by

229 serodiscordance and the frequency of sexual intercourse together with a 33% decrease in condom use,

230 ene attendance, 'high-risk' unprotected anal intercourse (UAI) and testing for HIV or STI in the prev

231 proportion of MSM reporting unprotected anal intercourse (UAI) in the past year increased from 43% (5

232 rtners), (c) PDPs with whom unprotected anal intercourse (UAI) occurred, and (d) PDPs with whom unpro

233 d) PDPs with whom unprotected insertive anal intercourse (uIAI) occurred.

234 mergency contraception within 72 h of sexual intercourse (ulipristal acetate, n=844; levonorgestrel,

235 cquiring HIV from unprotected receptive anal intercourse (URA) was 0.82 percent (95% confidence inter

236 Race/ethnicity, age at first intercourse, urban/nonurban residence, years of sexual a

237 und words (eg, "rectum" v "rectal urgency," "intercourse" v "vaginal intercourse").

238 with at least 1 successful attempt at sexual intercourse was 61 % (71/ 117) for the sildenafil group

239 The mean frequency of intercourse was 8.9 per month, which declined with age a

240 Contraceptive method at last sexual intercourse was assessed by 1 item-respondents could sel

241 Forced first intercourse was associated with increased risk of physic

242 Receptive unprotected anal intercourse was frequently reported by MSM (51.8%) but d

243 Intercourse was not associated with gross, colposcopic,

244 Pain, burning, or discomfort with intercourse was reported in 54% of patients and did not

245 Early age at first intercourse was significantly associated with pregnancy

246 Receptive anal intercourse was the sexual behavior most highly associat

247 e recruited soon after they first had sexual intercourse, we show that disruption of the E2 gene is a

248 Younger ages at first intercourse were associated with higher odds of STI in c

249 hether child sexual assault and forced first intercourse were associated with risk of violent revicti

250 aception within 5 days of unprotected sexual intercourse were eligible for enrolment in this randomis

251 study, 69 percent of all attempts at sexual intercourse were successful for the men receiving silden

252 es, receptive (40%) and insertive (27%) anal intercourse were the most common sexual acts.

253 examination, regardless of a history of anal intercourse, were screened for rectal C. trachomatis usi

254 d sex, and less unprotected vaginal and anal intercourse - when compared with other interventions.

255 nd increased with genital CSA and especially intercourse, where most ORs exceeded 3.0.

256 ansmission (via breastfeeding or sexual oral intercourse), which occurs across the oral and/or gastro

257 ions mostly aimed to reduce unprotected anal intercourse, which, although somewhat efficacious, did n

258 days in which participants engaged in sexual intercourse while high on drugs and/or alcohol; and (3)

259 Of 20 prior abstainers from intercourse who completed the study, 17 (85%) had resume

260 ling, who reported non-condom receptive anal intercourse, who had more sexual partners, and who had a

261 transgender women reporting condomless anal intercourse with >/=1 HIV-infected or unknown-serostatus

262 5, P < .001), and unprotected receptive anal intercourse with >1 male partner (IRR, 3.37, P < .001) w

263 of men practicing unprotected receptive anal intercourse with 1 or more partners declined from 54% to

264 Participants reported sexual intercourse with 235 (62%) of 380 sexual partners who te

265 g illegal drugs (P < .001) and having sexual intercourse with 4 or more persons (P = .03); use among

266 ng), 2-6 hours and 10-14 hours after vaginal intercourse with a male condom, and 2-6 hours and 10-14

267 enrolled before or within 3 months of first intercourse with a male partner and were censored at the

268 university students who reported their first intercourse with a male partner either during the study

269 r 2010, Black MSM reporting unprotected anal intercourse with a man in the past six months were enrol

270 of the eligible participants reported sexual intercourse with a new partner.

271 en who acknowledged having engaged in sexual intercourse with a woman during the preceding year.

272 d women reporting condomless vaginal or anal intercourse with at least 1 man with HIV infection or un

273 sess their risk of HIV or STIs during sexual intercourse with circumcised men.

274 omen reporting no contraceptive use at first intercourse with decreasing age at interview.

275 The higher risk was not explained by sexual intercourse with female partners.

276 ournal is the first to associate penile-oral intercourse with HHV8 transmission.

277 Unprotected sexual intercourse with HIV-infected men is the major cause of

278 The occurrence of unprotected receptive anal intercourse with HIV-positive and unknown-status partner

279 CI: 1.4, 8.3) and unprotected receptive anal intercourse with HIV-positive or unknown status partners

280 who acknowledged having had no prior sexual intercourse with men.

281 Intercourse with periurethral carriage of the rUTI strai

282 Among males, intercourse with prostitutes was associated with HTLV-II

283 associated with the men's having unprotected intercourse with prostitutes.

284 en and their partners agreed to have regular intercourse with the intent of conception during the stu

285 ent participants, females engaging in sexual intercourse with the use of condoms (odds ratio [OR], 6.

286 traception within 72 h of unprotected sexual intercourse, with a non-inferiority margin of 1% point d

287 This review focuses on recent work on intercourse within biofilms, among quorum-sensing popula

288 = 1.5, 95% CI: 1.1, 2.2), and having sexual intercourse within the 5 days prior to the follow-up vis

289 nsgender women self-reporting receptive anal intercourse without a condom (NNT 36), cocaine use (12),

290 r men who have sex with men who had had anal intercourse without a condom in the previous 90 days.

291 Participants reporting receptive anal intercourse without a condom seroconverted significantly

292 d transgender women reporting receptive anal intercourse without a condom was 64% (prevalence 60%).

293 71); by contrast, the PAF for receptive anal intercourse without a condom with an HIV-positive partne

294 Most of this risk came from receptive anal intercourse without a condom with partners with unknown

295 transgender women who report receptive anal intercourse without a condom, even if they perceive thei

296 y reported transactional sex, receptive anal intercourse without a condom, or more than five partners

297 and 2-6 hours and 10-14 hours after vaginal intercourse without a male condom (5 visits total, inclu

298 ty (failure to conceive after 1 year despite intercourse without contraception) that was first diagno

299 of HIV and semen surrogates after simulated intercourse without disrupting vaginal contents.

300 sed a condom than among those who had sexual intercourse without one and (2) among female oral-contra