WORLD HEALTH DIGEST, Volume 6, Issue 35,2009, Pages 227-228, doi:10.3969/j.issn.1672-5085.2009.35.225
PUBLIC MEDICAL FORUM MAGAZINE, Volume 13, Issue 35,2009, Pages 1157, doi:10.3969/j.issn.1672-1721.2009.35.089
CHINESE GENERAL NURSING, Volume 7, Issue 35,2009, Pages 3277-3278, doi:10.3969/j.issn.1674-4748.2009.35.065
MATERNAL AND CHILD HEALTH CARE OF CHINA, Volume 24, Issue 35,2009, Pages 5069-5071,
CONTEMPORARY MEDICINE, Volume 15, Issue 35,2009, Pages 718-720, doi:10.3969/j.issn.1009-4393.2009.35.029