WORLD JOURNAL OF GASTROENTEROLOGY, Volume 16, Issue 18,2010, Pages 2305-2310, doi:10.3748/wjg.v16.i18.2305
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 16, Issue 18,2010, Pages 2227-2234, doi:10.3748/wjg.v16.i18.2227
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 16, Issue 18,2010, Pages 2265-2271, doi:10.3748/wjg.v16.i18.2265
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 16, Issue 18,2010, Pages 2278-2282, doi:10.3748/wjg.v16.i18.2278
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 16, Issue 18,2010, Pages 2321-2322, doi:10.3748/wjg.v16.i18.2321