Chinese Journal of Perinatal Medicine, Volume 21, Issue 1,2018, Pages 10,35, doi:10.3760/cma.j.issn.1007-9408.2018.01.101
Chinese Journal of Perinatal Medicine, Volume 21, Issue 1,2018, Pages 31-35, doi:10.3760/cma.j.issn.1007-9408.2018.01.007
Chinese Journal of Perinatal Medicine, Volume 21, Issue 1,2018, Pages 11-17, doi:10.3760/cma.j.issn.1007-9408.2018.01.004
Chinese Journal of Perinatal Medicine, Volume 21, Issue 1,2018, Pages 6-10, doi:10.3760/cma.j.issn.1007-9408.2018.01.003
Chinese Journal of Perinatal Medicine, Volume 21, Issue 1,2018, Pages 1, doi:10.3760/cma.j.issn.1007-9408.2018.01.001