Chinese Journal of Perinatal Medicine, Volume 19, Issue 9,2016, Pages 681-683, doi:10.3760/cma.j.issn.1007-9408.2016.09.009
Chinese Journal of Perinatal Medicine, Volume 19, Issue 9,2016, Pages 662-667, doi:10.3760/cma.j.issn.1007-9408.2016.09.005
Chinese Journal of Perinatal Medicine, Volume 19, Issue 9,2016, Pages 714, doi:10.3760/cma.j.issn.1007-9408.2016.09.016
Chinese Journal of Perinatal Medicine, Volume 19, Issue 9,2016, Pages 700-704, doi:10.3760/cma.j.issn.1007-9408.2016.09.013
Chinese Journal of Perinatal Medicine, Volume 19, Issue 9,2016, Pages 641-648, doi:10.3760/cma.j.issn.1007-9408.2016.09.001