Nazareth Kristina Marie, Ngo Peter D
Division of Pediatric Gastroenterology, Floating Hospital for Children at Tufts Medical Center, Tufts University School of Medicine, Boston, MA 02111, USA.
J Pediatr Gastroenterol Nutr. 2011 Jun;52(6):645. doi: 10.1097/MPG.0b013e31820e6881.