WORLD JOURNAL OF GASTROENTEROLOGY, Volume 13, Issue 44,2007, Pages 5902-5910,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 13, Issue 44,2007, Pages 5958,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 13, Issue 44,2007, Pages 5954-5956,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 13, Issue 44,2007, Pages 5813-5821,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 13, Issue 44,2007, Pages 5938-5943,