Chinese Journal of Perinatal Medicine, Volume 18, Issue 11,2015, Pages 808-811, doi:10.3760/cma.j.issn.1007-9408.2015.11.003
Chinese Journal of Perinatal Medicine, Volume 18, Issue 11,2015, Pages 828-831, doi:10.3760/cma.j.issn.1007-9408.2015.11.007
Chinese Journal of Perinatal Medicine, Volume 18, Issue 11,2015, Pages 801-804, doi:10.3760/cma.j.issn.1007-9408.2015.11.001
Chinese Journal of Perinatal Medicine, Volume 18, Issue 11,2015, Pages 843-847, doi:10.3760/cma.j.issn.1007-9408.2015.11.011
Chinese Journal of Perinatal Medicine, Volume 18, Issue 11,2015, Pages 848-851, doi:10.3760/cma.j.issn.1007-9408.2015.11.012