Chinese Journal of Perinatal Medicine, , Issue 6,2014, Pages 402-402, doi:10.3760/cma.j.issn.1007-9408.2014.06.015.1
Chinese Journal of Perinatal Medicine, , Issue 6,2014, Pages 358-358, doi:10.3760/cma.j.issn.1007-9408.2014.06.003
Chinese Journal of Perinatal Medicine, , Issue 6,2014, Pages 421-424, doi:10.3760/cma.j.issn.1007-9408.2014.06.018
Chinese Journal of Perinatal Medicine, , Issue 6,2014, Pages 361-364, doi:10.3760/cma.j.issn.1007-9408.2014.06.004
Chinese Journal of Perinatal Medicine, , Issue 6,2014, Pages 379-383, doi:10.3760/cma.j.issn.1007-9408.2014.06.008