Journal of Practical Obstetrics and Gynecology, Volume 29, Issue 3,2013, Pages 226-228, doi:10.3969/j.issn.1003-6946.2013.03.024
Journal of Practical Obstetrics and Gynecology, Volume 29, Issue 3,2013, Pages 167-170, doi:10.3969/j.issn.1003-6946.2013.03.004
Journal of Practical Obstetrics and Gynecology, Volume 29, Issue 3,2013, Pages 163-165, doi:10.3969/j.issn.1003-6946.2013.03.002
Journal of Practical Obstetrics and Gynecology, Volume 29, Issue 3,2013, Pages 180, doi:10.3969/j.issn.1003-6946.2013.03.009
Journal of Practical Obstetrics and Gynecology, Volume 29, Issue 3,2013, Pages 165-167, doi:10.3969/j.issn.1003-6946.2013.03.003