Abu-El-Haija Maisam, Stasheff Steven, Atkins Dianne L, Bishop Warren P
Department of Pediatrics, Division of Pediatric Gastroenterology, University of Iowa Hospitals and Clinics, Iowa City, IA 52242, USA.
J Pediatr Gastroenterol Nutr. 2011 Mar;52(3):360-1. doi: 10.1097/MPG.0b013e3181eb6a09.