WORLD JOURNAL OF GASTROENTEROLOGY, Volume 12, Issue 39,2006, Pages 6261-6265,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 12, Issue 39,2006, Pages 6266-6273,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 12, Issue 39,2006, Pages 6280-6284,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 12, Issue 39,2006, Pages 6355-6360,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 12, Issue 39,2006, Pages 6290-6298,