WORLD JOURNAL OF GASTROENTEROLOGY, Volume 14, Issue 21,2008, Pages 3421-3424, doi:10.3748/wjg.14.3421
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 14, Issue 21,2008, Pages 3292-3300, doi:10.3748/wjg.14.3292
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 14, Issue 21,2008, Pages 3435-3437, doi:10.3748/wjg.14.3435
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 14, Issue 21,2008, Pages 3328-3337, doi:10.3748/wjg.14.3328
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 14, Issue 21,2008, Pages 3396-3402, doi:10.3748/wjg.14.3396