WORLD JOURNAL OF GASTROENTEROLOGY, Volume 14, Issue 44,2008, Pages 6802-6807, doi:10.3748/wjg.14.6802
KAOSHI ZHOUKAN, , Issue 44,2008, Pages 238-239,
SHANDONG MEDICAL JOURNAL, Volume 48, Issue 44,2008, Pages 37-38, doi:10.3969/j.issn.1002-266X.2008.44.015
REVIEW OF ECONOMIC RESEARCH, , Issue 44,2008, Pages 56-60,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 14, Issue 44,2008, Pages 6889,