Clinical course and the role of shiga toxin-producing Escherichia coli infection in the hemolytic-uremic syndrome in pediatric patients, 1997-2000, in Germany and Austria: a prospective study - Gerber,A.; Karch,H.; Allerberger,F.; Verweyen,H.M.; Zimmerhackl,L.B. (J Infect Dis, 2002)