WORLD JOURNAL OF GASTROENTEROLOGY, Volume 12, Issue 33,2006, Pages 5287-5292,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 12, Issue 33,2006, Pages 5389-5392,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 12, Issue 33,2006, Pages 5368-5374,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 12, Issue 33,2006, Pages 5336-5343,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 12, Issue 33,2006, Pages 5416-5418,