Chinese Journal of Obstetrics and Gynecology, Volume 57, Issue 7,2022, Pages 530-533, doi:10.3760/cma.j.cn112141-20220216-00097
Chinese Journal of Obstetrics and Gynecology, Volume 57, Issue 7,2022, Pages 510-518, doi:10.3760/cma.j.cn112141-20220412-00235
Chinese Journal of Obstetrics and Gynecology, Volume 57, Issue 7,2022, Pages 534-539, doi:10.3760/cma.j.cn112141-20220524-00345
Chinese Journal of Obstetrics and Gynecology, Volume 57, Issue 7,2022, Pages 491-495, doi:10.3760/cma.j.cn112141-20220422-00269
Chinese Journal of Obstetrics and Gynecology, Volume 57, Issue 7,2022, Pages 519-529, doi:10.3760/cma.j.cn112141-20220509-00307