WORLD JOURNAL OF GASTROENTEROLOGY, Volume 15, Issue 44,2009, Pages 5549-5557, doi:10.3748/wjg.15.5549
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 15, Issue 44,2009, Pages 5624-5625, doi:10.3748/wjg.15.5624
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 15, Issue 44,2009, Pages 5533-5540, doi:10.3748/wjg.15.5533
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 15, Issue 44,2009, Pages 5610-5619, doi:10.3748/wjg.15.5610
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 15, Issue 44,2009, Pages 5598-5603, doi:10.3748/wjg.15.5598