Chinese Journal of Perinatal Medicine, Volume 23, Issue 2,2020, Pages 114-120, doi:10.3760/cma.j.issn.1007-9408.2020.02.008
Chinese Journal of Perinatal Medicine, Volume 23, Issue 2,2020, Pages 111-113, doi:10.3760/cma.j.issn.1007-9408.2020.02.007
Chinese Journal of Perinatal Medicine, Volume 23, Issue 2,2020, Pages 120, doi:10.3760/cma.j.issn.1007-9408.2020.02.104
Chinese Journal of Perinatal Medicine, Volume 23, Issue 2,2020, Pages 98-104, doi:10.3760/cma.j.issn.1007-9408.2020.02.005
Chinese Journal of Perinatal Medicine, Volume 23, Issue 2,2020, Pages 90, doi:10.3760/cma.j.issn.1007-9408.2020.02.101