作者单位：
Division of Gastroenterology, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON
[1]
Division of Gastroenterology, Saint-Sacrement Hospital, Quebec City, QC, Canada
[2]
Division of Gastroenterology, McGill University Health Centre, Montreal General Hospital Site, 1650
[3]
Division of Gastroenterology, University of Calgary, Calgary, AB, Canada
[4]
发布时间
2013-11-20
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