1. Department of Obstetrics and Gynecology, Pusan National University School of Medicine, Biomedical Research Institute, Pusan National University Hospital, Busan, Republic of Korea
2. The Korea Institute for Public Sperm Bank, Busan, Republic of Korea
3. Korea Institute of Toxicology, Gyeongnam Branch Institute, Jinju, Gyeongsangnam-do, Republic of Korea