Molleston Jean P, Vik Terry A, Steiner Steven J, Kernek Kevin M
Division of Pediatric Gastroenterology, Hepatology, and Nutrition, Indiana University School of Medicine, James Whitcomb Riley Hospital for Children, Indianapolis 46202, USA.
J Pediatr Gastroenterol Nutr. 2008 Feb;46(2):216-9. doi: 10.1097/MPG.0b013e318157932f.