WORLD JOURNAL OF GASTROENTEROLOGY, Volume 11, Issue 11,2005, Pages 1673-1679,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 11, Issue 11,2005, Pages 1725-1727,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 11, Issue 11,2005, Pages 1571-1576,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 11, Issue 11,2005, Pages 1610-1615,