CHINA MEDICAL HERALD, Volume 4, Issue 13,2007, Pages 71-72, doi:10.3969/j.issn.1673-7210.2007.13.043
JOURNAL OF QIQIHAR MEDICAL COLLEGE, Volume 28, Issue 13,2007, Pages 1606-1608, doi:10.3969/j.issn.1002-1256.2007.13.047
ZHONGXIAOXUE XINLI JIANKANG JIAOYU, , Issue 13,2007, Pages 1, doi:10.3969/j.issn.1671-2684.2007.13.001
JOURNAL OF NURSES TRAINING, Volume 22, Issue 13,2007, Pages 1230-1231, doi:10.3969/j.issn.1002-6975.2007.13.040