WORLD JOURNAL OF GASTROENTEROLOGY, Volume 11, Issue 27,2005, Pages 4237-4240,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 11, Issue 27,2005, Pages 4233-4236,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 11, Issue 27,2005, Pages 4287-4289,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 11, Issue 27,2005, Pages 4254-4257,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 11, Issue 27,2005, Pages 4140-4147,