By Mitre Marcia C.   Katzka David A.   Brensinger Colleen M.   Lewis James D.   Mitre Ricardo J.   Ginsberg Gregory G.   in Digestive Diseases and Sciences

ISSN:0163-2116|49|5|770-773

Springer Publishing Company ‎(2004)‎

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By Blonski Wojciech   Shih Grace   Brensinger Colleen   Katzka David   Metz David   in Scandinavian Journal of Gastroenterology

ISSN:0036-5521|41|4|382-389

Informa Healthcare‎(2006)‎

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