WORLD JOURNAL OF GASTROENTEROLOGY, Volume 11, Issue 46,2005, Pages 7340-7344,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 11, Issue 46,2005, Pages 7364-7367,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 11, Issue 46,2005, Pages 7323-7329,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 11, Issue 46,2005, Pages 7351-7354,