Chinese Journal of Perinatal Medicine, Volume 20, Issue 12,2017, Pages 904-906, doi:10.3760/cma.j.issn.1007-9408.2017.12.104
Chinese Journal of Perinatal Medicine, Volume 20, Issue 12,2017, Pages 855-858, doi:10.3760/cma.j.issn.1007-9408.2017.12.003
Chinese Journal of Perinatal Medicine, Volume 20, Issue 12,2017, Pages 895-898, doi:10.3760/cma.j.issn.1007-9408.2017.12.011
Chinese Journal of Perinatal Medicine, Volume 20, Issue 12,2017, Pages 891-894, doi:10.3760/cma.j.issn.1007-9408.2017.12.010
Chinese Journal of Perinatal Medicine, Volume 20, Issue 12,2017, Pages 862, doi:10.3760/cma.j.issn.1007-9408.2017.12.101