WORLD JOURNAL OF GASTROENTEROLOGY, Volume 12, Issue 36,2006, Pages 5909-5912,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 12, Issue 36,2006, Pages 5834-5845,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 12, Issue 36,2006, Pages 5875-5877,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 12, Issue 36,2006, Pages 5893-5896,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 12, Issue 36,2006, Pages 5866-5869,