WORLD HEALTH DIGEST, Volume 6, Issue 31,2009, Pages 98-99, doi:10.3969/j.issn.1672-5085.2009.31.095
CHINESE JOURNAL OF PRACTICAL NURSING, Volume 25, Issue 31,2009, Pages 36-37, doi:10.3760/cma.j.issn.1672-7088.2009.11.023
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 89, Issue 31,2009, Pages 2161-2162, doi:10.3760/cma.j.issn.0376-2491.2009.31.001
MEDICAL INNOVATION OF CHINA, Volume 06, Issue 31,2009, Pages 117-118, doi:10.3969/j.issn.1674-4985.2009.31.084