WORLD JOURNAL OF GASTROENTEROLOGY, Volume 14, Issue 29,2008, Pages 4633-4642, doi:10.3748/wjg.14.4633
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 14, Issue 29,2008, Pages 4607-4615, doi:10.3748/wjg.14.4607
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 14, Issue 29,2008, Pages 4667-4671, doi:10.3748/wjg.14.4667
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 14, Issue 29,2008, Pages 4593-4599, doi:10.3748/wjg.14.4593
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 14, Issue 29,2008, Pages 4690-4693, doi:10.3748/wjg.14.4690