1 formyl-benzamido group where the nitro group used to be.

2                                        There used to be a broad split within the experimental genetic

3 ysical and aesthetic properties of materials used to be a collaboration between the arts and the scie

4 ear that a career in medicine is not what it used to be and that a career in infectious diseases in p

5  which were limited by the mass spectrometer used) to be at least as good for purposes of peptide ide

6                   Invisibility cloaks, which used to be confined to the realm of fiction, have now be

7                                           It used to be considered the cause of cancer when it was di

8 ception" may include maternal smoking, which used to be lower in Finnish women than elsewhere, and wh

9  new materials for various applications that used to be possible only in a liquid.

10 ity-acquired methicillin-resistant S. aureus used to be predominantly associated with localized disea

11  alcohols and bishomoallylic alcohols, which used to be quite difficult substrates for other types of

12        Although cardiovascular disease (CVD) used to be rare among American Indians, Indian Health Se

13 As carry diverse chemical modifications that used to be regarded as static and having minor roles in

14 imental studies, hypertensive lesions, which used to be the backbone of older classifications of the

15 e quest to slow aging has come far, and what used to be the domain of science fiction writers and sna

16 bon monoxide (CO) and hydrogen sulfide (H2S) used to be thought of simply as lethal and (for H2S) sme

17                                           It used to be thought that only vertebrates possess neural

18                                           It used to be thought that the atrioventricular septum was