Whitworth John R, Mack Cara L, O'Connor Judith A, Narkewicz Michael R, Mengshol Sarah, Sokol Ronald J
Section of Pediatric Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, The Pediatric Liver Center, Denver, CO, USA.
J Pediatr Gastroenterol Nutr. 2006 Oct;43(4):536-8. doi: 10.1097/01.mpg.0000232332.00677.3d.