Wershil Barry K, Butzner Decker, Sabra Aderbal, Savilahti Erkki, Seidman Ernest, Strobel Stephan, Yamashiro Yuichiro
North American Society of Gastroenterology, Hepatology, and Nutrition, USA.
J Pediatr Gastroenterol Nutr. 2002;35 Suppl 2:S74-7. doi: 10.1097/00005176-200208002-00003.