Chinese Journal of Perinatal Medicine, Volume 20, Issue 3,2017, Pages 213-218, doi:10.3760/cma.j.issn.1007-9408.2017.03.013
Chinese Journal of Perinatal Medicine, Volume 20, Issue 3,2017, Pages 223-227, doi:10.3760/cma.j.issn.1007-9408.2017.03.015
Chinese Journal of Perinatal Medicine, Volume 20, Issue 3,2017, Pages 165-169, doi:10.3760/cma.j.issn.1007-9408.2017.03.002
Chinese Journal of Perinatal Medicine, Volume 20, Issue 3,2017, Pages 238, doi:10.3760/cma.j.issn.1007-9408.2017.03.102
Chinese Journal of Perinatal Medicine, Volume 20, Issue 3,2017, Pages 170-171, doi:10.3760/cma.j.issn.1007-9408.2017.03.003