1. Department of Obstetrics and Gynaecology, Kaohsiung Veterans General Hospital, Kaohsiung 813, Taiwan
2. Institute of Biopharmaceutical Sciences, National Sun Yat-Sen University, Kaohsiung 804, Taiwan
3. Department of Obstetrics and Gynaecology, National Yang-Ming University School of Medicine, Taipei 112, Taiwan
4. Institute of Biomedical Sciences, National Sun Yat-Sen University, Kaohsiung 804, Taiwan
5. Department of Marine Biotechnology and Resources, National Sun Yat-Sen University, Kaohsiung 804, Taiwan
6. Department of Obstetrics and Gynecology, Taipei Veterans General Hospital, Taipei 112, Taiwan