WORLD JOURNAL OF GASTROENTEROLOGY, Volume 14, Issue 12,2008, Pages 1823-1827, doi:10.3748/wjg.14.1823
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 14, Issue 12,2008, Pages 1914-1918, doi:10.3748/wjg.14.1914
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 14, Issue 12,2008, Pages 1885-1890, doi:10.3748/wjg.14.1885
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 14, Issue 12,2008, Pages 1903-1907, doi:10.3748/wjg.14.1903
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 14, Issue 12,2008, Pages 1941-1945, doi:10.3748/wjg.14.1941