WORLD JOURNAL OF GASTROENTEROLOGY, Volume 11, Issue 45,2005, Pages 7097-7103,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 11, Issue 45,2005, Pages 7218-7221,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 11, Issue 45,2005, Pages 7179-7182,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 11, Issue 45,2005, Pages 7197-7202,