WORLD JOURNAL OF GASTROENTEROLOGY, Volume 11, Issue 23,2005, Pages 3523-3527,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 11, Issue 23,2005, Pages 3558-3561,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 11, Issue 23,2005, Pages 3591-3594,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 11, Issue 23,2005, Pages 3605-3609,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 11, Issue 23,2005, Pages 3595-3600,