WORLD JOURNAL OF GASTROENTEROLOGY, Volume 12, Issue 46,2006, Pages 7451-7459,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 12, Issue 46,2006, Pages 7482-7487,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 12, Issue 46,2006, Pages 7478-7481,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 12, Issue 46,2006, Pages 7556,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 12, Issue 46,2006, Pages 7542-7546,