1 Department of Obstetrics and Gynecology, Cathay General Hospital, Taipei, Taiwan, ROC.
2 Department of Obstetrics and Gynecology, National Yang-Ming University School of Medicine, Taipei, Taiwan, ROC; Department of Obstetrics and Gynecology, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan, ROC; Department of Pharmacy and Graduate Institute of Pharmaceutical Technology, Tajen University, Pingtung County, Taiwan, ROC.
3 Department of Nursing, National Yang-Ming University School of Nursing, Taipei, Taiwan, ROC; Department of Obstetrics and Gynecology, National Yang-Ming University School of Medicine, Taipei, Taiwan, ROC; Division of Gynecology, Department of Obstetrics and Gynecology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC; Immunology Center, Taipei Veterans General Hospital, Taipei, Taiwan, ROC; Department of Medical Research, China Medical University Hospital, Taichung, Taiwan, ROC. Electronic address: phwang@vghtpe.gov.tw.