WORLD JOURNAL OF GASTROENTEROLOGY, Volume 12, Issue 11,2006, Pages 1780-1781,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 12, Issue 11,2006, Pages 1795-1797,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 12, Issue 11,2006, Pages 1739-1742,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 12, Issue 11,2006, Pages 1782-1785,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 12, Issue 11,2006, Pages 1810-1812,