WORLD JOURNAL OF GASTROENTEROLOGY, Volume 12, Issue 29,2006, Pages 4699-4705,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 12, Issue 29,2006, Pages 4614-4627,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 12, Issue 29,2006, Pages 4636-4639,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 12, Issue 29,2006, Pages 4721-4726,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 12, Issue 29,2006, Pages 4665-4672,