WORLD JOURNAL OF GASTROENTEROLOGY, Volume 15, Issue 46,2009, Pages 5838-5842, doi:10.3748.wjg.15.5838
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 15, Issue 46,2009, Pages 5879-5881, doi:10.3748.wjg.15.5879
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 15, Issue 46,2009, Pages 5770-5775, doi:10.3748.wjg.15.5770
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 15, Issue 46,2009, Pages 5843-5850, doi:10.3748.wjg.15.5843
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 15, Issue 46,2009, Pages 5799-5804, doi:10.3748.wjg.15.5799