1. Institute of Medicine, Chung Shan Medical University, No. 110, Sec. 1, Jianguo N. Rd., South District, Taichung City 40201, Taiwan
2. Division of Infertility, Lee Women’s Hospital, No. 30-6, Sec. 1, Changping Road, Beitun District, Taichung City 406, Taiwan
3. Department of Obstetrics and Gynecology, Chung Shan Medical University Hospital, No. 110, Sec. 1, Jianguo N. Rd., South District, Taichung City 40201, Taiwan