Affiliations

• ¹ Department of Obstetrics and Gynecology, National Yang-Ming University, Taipei, Taiwan; Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan; Department of Obstetrics and Gynecology, National Yang-Ming University Hospital, Yilan, Taiwan;
• ² Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan; Department of Medicine, Cheng-Hsin General Hospital, Taipei, Taiwan; Department of Nursing, Oriental Institute of Technology, New Taipei City, Taiwan;
• ³ Department of Obstetrics and Gynecology, National Yang-Ming University, Taipei, Taiwan; Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan; Division of Gynecology, Department of Obstetrics and Gynecology, Taipei Veterans General Hospital, Taipei, Taiwan; and Department of Medical Research, China Medical University Hospital, Taichung, Taiwan phwang@vghtpe.gov.tw phwang@ym.edu.tw pongpongwang@gmail.com.