WORLD JOURNAL OF GASTROENTEROLOGY, Volume 14, Issue 11,2008, Pages 1797-1799, doi:10.3748/wjg.14.1797
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 14, Issue 11,2008, Pages 1670-1681, doi:10.3748/wjg.14.1670
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 14, Issue 11,2008, Pages 1646-1651, doi:10.3748/wjg.14.1646
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 14, Issue 11,2008, Pages 1749-1758, doi:10.3748/wjg.14.1749
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 14, Issue 11,2008, Pages 1785-1789, doi:10.3748/wjg.14.1785