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Digestive Diseases and Sciences > 2007 > 52 > 9 > 2368-2374
Journal of Gastroenterology > 2004 > 39 > 11 > 1102-1105
Digestive Diseases and Sciences > 2007 > 52 > 9 > 2368-2374
Journal of Gastroenterology > 2004 > 39 > 11 > 1102-1105