Zeltzer L, Hyman P, Heyman M, Boyce W T, Zwass M, Koh J, Hamilton A, Feldman E J
Department of Pediatrics, University of California at Los Angeles 90024-1752, USA.
J Pediatr Gastroenterol Nutr. 1996 Jan;22(1):92-8. doi: 10.1097/00005176-199601000-00015.