Chinese Journal of Perinatal Medicine, Volume 19, Issue 6,2016, Pages 449,455, doi:10.3760/cma.j.issn.1007-9408.2016.06.102
Chinese Journal of Perinatal Medicine, Volume 19, Issue 6,2016, Pages 418-421, doi:10.3760/cma.j.issn.1007-9408.2016.06.005
Chinese Journal of Perinatal Medicine, Volume 19, Issue 6,2016, Pages 442-445, doi:10.3760/cma.j.issn.1007-9408.2016.06.011
Chinese Journal of Perinatal Medicine, Volume 19, Issue 6,2016, Pages 403-405, doi:10.3760/cma.j.issn.1007-9408.2016.06.002
Chinese Journal of Perinatal Medicine, Volume 19, Issue 6,2016, Pages 401-402, doi:10.3760/cma.j.issn.1007-9408.2016.06.001