WORLD JOURNAL OF GASTROENTEROLOGY, Volume 10, Issue 10,2004, Pages 1452-1456,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 10, Issue 10,2004, Pages 1421-1424,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 10, Issue 10,2004, Pages 1425-1430,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 10, Issue 10,2004, Pages 1471-1475,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 10, Issue 10,2004, Pages 1392-1396,