SCI-TECH INFORMATION DEVELOPMENT & ECONOMY, Volume 19, Issue 33,2009, Pages 38-40, doi:10.3969/j.issn.1005-6033.2009.33.018
WORLD CHINESE JOURNAL OF DIGESTOLOGY, Volume 17, Issue 33,2009, Pages 3437-3440, doi:10.3969/j.issn.1009-3079.2009.33.011
MARKET MODERNIZATION, , Issue 33,2009, Pages 87-88, doi:10.3969/j.issn.1006-3102.2009.33.046
HEILONGJIANG SCIENCE AND TECHNOLOGY INFORMATION, , Issue 33,2009, Pages 192,191, doi:10.3969/j.issn.1673-1328.2009.33.188
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 89, Issue 33,2009, Pages 2353-2355, doi:10.3760/cma.j.issn.0376-2491.2009.33.013