WORLD JOURNAL OF GASTROENTEROLOGY, Volume 12, Issue 5,2006, Pages 796-799,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 12, Issue 5,2006, Pages 739-746,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 12, Issue 5,2006, Pages 686-690,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 12, Issue 5,2006, Pages 809-811,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 12, Issue 5,2006, Pages 800-803,