WORLD JOURNAL OF GASTROENTEROLOGY, Volume 10, Issue 22,2004, Pages 3388,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 10, Issue 22,2004, Pages 3289-3291,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 10, Issue 22,2004, Pages 3353-3355,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 10, Issue 22,2004, Pages 3245-3250,