| Authors: |
Xia YF; Department of Obstetrics and Gynecology, The Affiliated Hospital of Qingdao University, Qingdao, China., Pei GH; Department of Obstetrics and Gynecology, The Affiliated Hospital of Qingdao University, Qingdao, China., Wang N; Department of Obstetrics and Gynecology, The Affiliated Hospital of Qingdao University, Qingdao, China., Che YC; Department of Obstetrics and Gynecology, The Affiliated Hospital of Qingdao University, Qingdao, China., Yu FS; Department of Obstetrics and Gynecology, The Affiliated Hospital of Qingdao University, Qingdao, China., Yin FF; Department of Obstetrics and Gynecology, The Affiliated Hospital of Qingdao University, Qingdao, China., Liu HX; Department of Obstetrics and Gynecology, The Third Hospital of Qingdao, Qingdao, China., Luo B; Department of Medical Microbiology, Qingdao University Medical College, Qingdao, 266021, China., Wang YK; Department of Obstetrics and Gynecology, The Affiliated Hospital of Qingdao University, Qingdao, China. qdwykpro@163.com. |