WORLD JOURNAL OF GASTROENTEROLOGY, Volume 10, Issue 19,2004, Pages 2908-2910,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 10, Issue 19,2004, Pages 2827-2830,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 10, Issue 19,2004, Pages 2924-2925,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 10, Issue 19,2004, Pages 2924,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 10, Issue 19,2004, Pages 2795-2799,