WORLD JOURNAL OF GASTROENTEROLOGY, Volume 11, Issue 22,2005, Pages 3392-3397,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 11, Issue 22,2005, Pages 3368-3374,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 11, Issue 22,2005, Pages 3385-3391,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 11, Issue 22,2005, Pages 3490,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 11, Issue 22,2005, Pages 3451-3456,