Chinese Journal of Obstetrics and Gynecology, Volume 51, Issue 9,2016, Pages 693-696, doi:10.3760/cma.j.issn.0529-567x.2016.09.011
Chinese Journal of Obstetrics and Gynecology, Volume 51, Issue 9,2016, Pages 683-687, doi:10.3760/cma.j.issn.0529-567x.2016.09.009
Chinese Journal of Obstetrics and Gynecology, Volume 51, Issue 9,2016, Pages 643-649, doi:10.3760/cma.j.issn.0529-567x.2016.09.002
Chinese Journal of Obstetrics and Gynecology, Volume 51, Issue 9,2016, Pages 717-717,
Chinese Journal of Obstetrics and Gynecology, Volume 51, Issue 9,2016, Pages 677-677, doi:10.3969/j.issn.0529-567X.2016.09.012