von Willebrand factor and von Willebrand factor-cleaving metalloprotease activity in Escherichia coli O157:H7-associated hemolytic uremic syndrome - Tsai, HM; Chandler, WL; Sarode, R; Hoffman, R; Jelacic, S; Habeeb, RL; Watkins, SL; Wong, CS; Williams, GD; Tarr, PI (Pediatr Res, 2001)