1 Department of Obstetrics and Gynecology, Macon & Joan Brock Virginia Health Sciences at Old Dominion University, Norfolk, VA.
2 Department of Obstetrics and Gynecology, University of Texas Medical Branch, Galveston, TX.
3 Department of Forensic Medicine, School of Medicine, Kindai University, Osaka, Japan.
4 Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, CT.
5 Department of Business Management, National Sun Yat-Sen University, Kaohsiung, Taiwan.
6 Department of Obstetrics and Gynecology, Macon & Joan Brock Virginia Health Sciences at Old Dominion University, Norfolk, VA. Electronic address: [email protected].