WORLD JOURNAL OF GASTROENTEROLOGY, Volume 12, Issue 31,2006, Pages 5005-5009,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 12, Issue 31,2006, Pages 5028-5032,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 12, Issue 31,2006, Pages 4937-4942,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 12, Issue 31,2006, Pages 5060-5063,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 12, Issue 31,2006, Pages 5055-5059,