Chinese Journal of Obstetrics and Gynecology, , Issue 4,2014, Pages 308-308, doi:10.3760/cma.j.issn.0529-567x.2014.04.026.1
Chinese Journal of Obstetrics and Gynecology, , Issue 4,2014, Pages 298-299, doi:10.3760/cma.j.issn.0529-567x.2014.04.014
Chinese Journal of Obstetrics and Gynecology, , Issue 4,2014, Pages 260-264, doi:10.3760/cma.j.issn.0529-567x.2014.04.005
Chinese Journal of Obstetrics and Gynecology, , Issue 4,2014, Pages 293-295, doi:10.3760/cma.j.issn.0529-567x.2014.04.012
Chinese Journal of Obstetrics and Gynecology, , Issue 4,2014, Pages 265-269, doi:10.3760/cma.j.issn.0529-567x.2014.04.006