1 Department of Obstetrics and Gynecology, Far Eastern Memorial Hospital, Ban Ciao, New Taipei City, Taiwan; Department of industrial Management, Asia Eastern University of Science and Technology, New Taipei City, Taiwan.
2 Department of Obstetrics and Gynecology, Far Eastern Memorial Hospital, Ban Ciao, New Taipei City, Taiwan.
3 Department of Obstetrics and Gynecology, Far Eastern Memorial Hospital, Ban Ciao, New Taipei City, Taiwan; Faculty of Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC. Electronic address: bitalvox@hotmail.com.