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Published in final edited form as: J Pediatr Gastroenterol Nutr. 2009 Feb;48(2):186–192. doi: 10.1097/MPG.0b013e3181752ce7
© 2009 by European Society for Pediatric Gastroenterology, Hepatology, and Nutrition and North American Society for Pediatric Gastroenterology, Hepatology, and Nutrition