WORLD JOURNAL OF GASTROENTEROLOGY, Volume 16, Issue 23,2010, Pages 2926-2930, doi:10.3748/wjg.v16.i23.2926
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 16, Issue 23,2010, Pages 2901-2906, doi:10.3748/wjg.v16.i23.2901
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 16, Issue 23,2010, Pages 2889-2894, doi:10.3748/wjg.v16.i23.2889
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 16, Issue 23,2010, Pages 2835-2840, doi:10.3748/wjg.v16.i23.2835
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 16, Issue 23,2010, Pages 2881-2888, doi:10.3748/wjg.v16.i23.2881