WORLD JOURNAL OF GASTROENTEROLOGY, Volume 15, Issue 47,2009, Pages 5924-5935, doi:10.3748/wjg.15.5924
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 15, Issue 47,2009, Pages 6000-6003, doi:10.3748/wjg.15.6000
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 15, Issue 47,2009, Pages 5916-5923, doi:10.3748/wjg.15.5916
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 15, Issue 47,2009, Pages 5936-5945, doi:10.3748/wjg.15.5936
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 15, Issue 47,2009, Pages 5953-5959, doi:10.3748/wjg.15.5953