Chinese Journal of Obstetrics and Gynecology, Volume 49, Issue 11,2014, Pages 807-810, doi:10.3760/cma.j.issn.0529-567x.2014.11.002
Chinese Journal of Obstetrics and Gynecology, Volume 49, Issue 11,2014, Pages 806,815,841,846,863,
Chinese Journal of Obstetrics and Gynecology, Volume 49, Issue 11,2014, Pages 873-874, doi:10.3760/cma.j.issn.0529-567x.2014.11.020
Chinese Journal of Obstetrics and Gynecology, Volume 49, Issue 11,2014, Pages 854-856, doi:10.3760/cma.j.issn.0529-567x.2014.11.012
Chinese Journal of Obstetrics and Gynecology, Volume 49, Issue 11,2014, Pages 878-880, doi:10.3760/cma.j.issn.0529-567x.2014.11.022