WORLD JOURNAL OF GASTROENTEROLOGY, Volume 14, Issue 44,2006, Pages 7216-7220,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 14, Issue 44,2006, Pages 7197-7202,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 14, Issue 44,2006, Pages 7183-7187,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 14, Issue 44,2006, Pages 7143-7148,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 14, Issue 44,2006, Pages 7203-7205,