1 ents with false-negative US examinations had abdominal tenderness.

2 oints to blood in stool, and 1 point each to abdominal tenderness and abdominal discoloration; 1 poin

3 10 x 10(9)/L (OR, 4.0 [CI, 1.7 to 9.5]), and abdominal tenderness on physical examination (OR, 2.9 [C

4 Three patients had blood in their diarrhoea, abdominal tenderness, or both.

5  days later, he presented with acute anemia, abdominal tenderness, severe hepatic cytolysis, metaboli

6                               The absence of abdominal tenderness to palpation does not rule out an i