WORLD JOURNAL OF GASTROENTEROLOGY, Volume 16, Issue 4,2010, Pages 501-507, doi:10.3748/wjg.v16.i4.501
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 16, Issue 4,2010, Pages 462-466, doi:10.3748/wjg.v16.i4.462
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 16, Issue 4,2010, Pages 526-530, doi:10.3748/wjg.v16.i4.526
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 16, Issue 4,2010, Pages 411-417, doi:10.3748/wjg.v16.i4.411
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 16, Issue 4,2010, Pages 403-410, doi:10.3748/wjg.v16.i4.403