Pettei M J, Valderamma E, Levine J J, Ilowite N T
Division of Pediatric Gastroenterology, Schneider Children's Hospital, Long Island Jewish Medical Center, Albert Einstein College of Medicine, New Hyde Park 11042, USA.
J Pediatr Gastroenterol Nutr. 1995 Apr;20(3):343-6. doi: 10.1097/00005176-199504000-00014.