1 Department of Obstetrics and Gynecology, Far Eastern Memorial Hospital, New Taipei City, Taiwan; Department of Obstetrics and Gynecology, National Yang-Ming University School of Medicine, Taipei, Taiwan.
2 Department of Obstetrics and Gynecology, Far Eastern Memorial Hospital, New Taipei City, Taiwan.
3 Department of Obstetrics and Gynecology, National Yang-Ming University School of Medicine, Taipei, Taiwan; Division of Gynecology, Department of Obstetrics and Gynecology, Taipei Veterans General Hospital, Taipei, Taiwan.
4 Department of Obstetrics and Gynecology, National Yang-Ming University School of Medicine, Taipei, Taiwan; Division of Gynecology, Department of Obstetrics and Gynecology, Taipei Veterans General Hospital, Taipei, Taiwan; Immunology Center, Taipei Veterans General Hospital, Taipei, Taiwan; Department of Medical Research, China Medical University Hospital, Taichung, Taiwan. Electronic address: phwang@vghtpe.gov.tw.