WORLD JOURNAL OF GASTROENTEROLOGY, Volume 12, Issue 8,2006, Pages 1321-1323,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 12, Issue 8,2006, Pages 1303-1307,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 12, Issue 8,2006, Pages 1192-1197,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 12, Issue 8,2006, Pages 1175-1181,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 12, Issue 8,2006, Pages 1270-1272,