WORLD JOURNAL OF GASTROENTEROLOGY, Volume 14, Issue 10,2008, Pages 1638-1640,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 14, Issue 10,2008, Pages 1575-1581, doi:10.3748/wjg.14.1575
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 14, Issue 10,2008, Pages 1617-1621, doi:10.3748/wjg.14.1617
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 14, Issue 10,2008, Pages 1570-1574, doi:10.3748/wjg.14.1570
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 14, Issue 10,2008, Pages 1479-1490, doi:10.3748/wjg.14.1479