WORLD JOURNAL OF GASTROENTEROLOGY, Volume 15, Issue 9,2009, Pages 1035-1041, doi:10.3748/wjg.15.1035
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 15, Issue 9,2009, Pages 1138-1140, doi:10.3748/wjg.15.1138
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 15, Issue 9,2009, Pages 1105-1112, doi:10.3748/wjg.15.1105
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 15, Issue 9,2009, Pages 1025-1034, doi:10.3748/wjg.15.1025
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 15, Issue 9,2009, Pages 1126-1129, doi:10.3748/wjg.15.1126