O'Connor DL, Jacobs J, Hall R, Adamkin D, Auestad N, Castillo M, Connor WE, Connor SL, Fitzgerald K, Groh-Wargo S, Hartmann EE, Janowsky J, Lucas A, Margeson D, Mena P, Neuringer M, Ross G, Singer L, Stephenson T, Szabo J, Zemon V.
J Pediatr Gastroenterol Nutr. 2003 Oct;37(4):437-46.