Lippincott, Williams & Wilkins, The American Journal of Gastroenterology, 3(104), p. 630-638, 2009
DOI: 10.14309/00000434-200903000-00022
Lippincott, Williams & Wilkins, The American Journal of Gastroenterology, 3(104), p. 630-638, 2009
DOI: 10.1038/ajg.2008.112
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