WORLD JOURNAL OF GASTROENTEROLOGY, Volume 14, Issue 16,2008, Pages 2609-2611, doi:10.3748/wjg.14.2609
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 14, Issue 16,2008, Pages 2517-2521, doi:10.3748/wjg.14.2517
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 14, Issue 16,2008, Pages 2566-2571, doi:10.3748/wjg.14.2566
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 14, Issue 16,2008, Pages 2540-2543, doi:10.3748/wjg.14.2540
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 14, Issue 16,2008, Pages 2487-2493, doi:10.3748/wjg.14.2487