WORLD JOURNAL OF GASTROENTEROLOGY, Volume 16, Issue 17,2010, Pages 2134-2145, doi:10.3748/wjg.v16.i17.2134
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 16, Issue 17,2010, Pages 2170-2175, doi:10.3748/wjg.v16.i17.2170
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 16, Issue 17,2010, Pages 2109-2119, doi:10.3748/wjg.v16.i17.2109
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 16, Issue 17,2010, Pages 2193-2194, doi:10.3748/wjg.v16.i17.2193
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 16, Issue 17,2010, Pages 2129-2133, doi:10.3748/wjg.v16.i17.2129