Carvalho Ryan S, Michail Sonia, Ashai-Khan Farhat, Mezoff Adam G
Children's Medical Center of Dayton, Wright State Unicersith Boonsshoft School of Medicine, Department of Pediatrics, Division of Gastroenterology and Nutrition, Dayton, Ohio, USA.
Curr Probl Pediatr Adolesc Health Care. 2008 Aug;38(7):204-28. doi: 10.1016/j.cppeds.2008.06.002.