WORLD JOURNAL OF GASTROENTEROLOGY, Volume 15, Issue 31,2009, Pages 3964,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 15, Issue 31,2009, Pages 3845-3850, doi:10.3748/wjg.15.3845
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 15, Issue 31,2009, Pages 3954-3956, doi:10.3748/wjg.15.3954
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 15, Issue 31,2009, Pages 3865-3873, doi:10.3748/wjg.15.3865
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 15, Issue 31,2009, Pages 3944-3946, doi:10.3748/wjg.15.3944