Sentongo T A, Lichtenstein G, Nathanson K, Kaplan P, Maller E
Division of Gastroenterology and Nutrition, The Children's Hospital of Philadelphia, Pennsylvania 19104, USA.
J Pediatr Gastroenterol Nutr. 1998 Nov;27(5):599-602. doi: 10.1097/00005176-199811000-00020.