5Turck D,Bernet JP,Marx J,et al.Incidence and risk factors of oral antibiotic-associated diarrhea in an outpatient pediatric population.J Pediatr Gastroenterol Nutr,2003,37(2):22-26.
6Singh-Naz N,Sprague BM,Patel KM,et al.Risk assessment and standardized nosocomial infection rate in critically ill children.Crit Care Med,2000,28(6):2069-2075.