Probiotics in gastrointestinal diseases in children: hard and not-so-hard evidence of efficacy.
Szajewska H, Setty M, Mrukowicz J, Guandalini S. Probiotics in gastrointestinal diseases in children: hard and not-so-hard evidence of efficacy. J Pediatr Gastroenterol Nutr. 2006 May; 42(5):454-75.