WORLD JOURNAL OF GASTROENTEROLOGY, Volume 10, Issue 12,2004, Pages 1695-1696,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 10, Issue 12,2004, Pages 1795-1797,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 10, Issue 12,2004, Pages 1730-1734,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 10, Issue 12,2004, Pages 1802-1805,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 10, Issue 12,2004, Pages 1740-1745,