WORLD CHINESE JOURNAL OF DIGESTOLOGY, Volume 17, Issue 15,2009, Pages 1552-1557, doi:10.3969/j.issn.1009-3079.2009.15.015
WORLD CHINESE JOURNAL OF DIGESTOLOGY, Volume 17, Issue 15,2009, Pages 1551,1557,1566,1574,1581,1589,
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