Chinese Journal of Perinatal Medicine, Volume 22, Issue 3,2019, Pages 145-149, doi:10.3760/cma.j.issn.1007-9408.2019.03.001
Chinese Journal of Perinatal Medicine, Volume 22, Issue 3,2019, Pages 210, doi:10.3760/cma.j.issn.1007-9408.2019.03.104
Chinese Journal of Perinatal Medicine, Volume 22, Issue 3,2019, Pages 207-210, doi:10.3760/cma.j.issn.1007-9408.2019.03.011
Chinese Journal of Perinatal Medicine, Volume 22, Issue 3,2019, Pages 163, doi:10.3760/cma.j.issn.1007-9408.2019.03.101
Chinese Journal of Perinatal Medicine, Volume 22, Issue 3,2019, Pages 186-193, doi:10.3760/cma.j.issn.1007-9408.2019.03.007