MATERNAL AND CHILD HEALTH CARE OF CHINA, Volume 22, Issue 35,2007, Pages 5073-5075, doi:10.3969/j.issn.1001-4411.2007.35.066
FAMILY NURSE, Volume 5, Issue 35,2007, Pages 44-44, doi:10.3969/j.issn.1674-4748.2007.35.034
CHINA PRACTICAL MEDICINE, Volume 2, Issue 35,2007, Pages 132-133, doi:10.3969/j.issn.1673-7555.2007.35.107
MATERNAL AND CHILD HEALTH CARE OF CHINA, Volume 22, Issue 35,2007, Pages 5076-5077, doi:10.3969/j.issn.1001-4411.2007.35.067
SHANDONG MEDICAL JOURNAL, Volume 47, Issue 35,2007, Pages 14-16, doi:10.3969/j.issn.1002-266X.2007.35.005