Affiliation: | Service de Gastroentérologie-Nutrition, H?pital Sainte-Justine, 3175, C?te Ste-Catherine, Montréal (Québec), H3T 1C5 Canada, Tel.: (514) 345–4626, Fax: (514) 345–4999, CA Division of Radiology, H?pital Sainte-Justine, Montréal, Canada, CA Division of Pathology, H?pital Sainte-Justine, Montréal, Canada, CA
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