WORLD JOURNAL OF GASTROENTEROLOGY, Volume 12, Issue 32,2006, Pages 5196-5200,
CHINA MEDICAL HERALD, Volume 3, Issue 32,2006, Pages 156, doi:10.3969/j.issn.1673-7210.2006.32.114
SHANDONG MEDICAL JOURNAL, Volume 46, Issue 32,2006, Pages 68-69, doi:10.3969/j.issn.1002-266X.2006.32.057
SHANDONG MEDICAL JOURNAL, Volume 46, Issue 32,2006, Pages 14-15, doi:10.3969/j.issn.1002-266X.2006.32.006
WORLD CHINESE JOURNAL OF DIGESTOLOGY, Volume 14, Issue 32,2006, Pages 3081-3087, doi:10.3969/j.issn.1009-3079.2006.32.002