1. National Research Center for Sexual Medicine, Department of Urology, Inha University School of Medicine, Incheon, Republic of Korea
2. Department of Urology, Sungkyunkwan University School of Medicine, Samsung Changwon Hospital, Changwon, Republic of Korea
3. Research Institute of Pharmaceutical Sciences and College of Pharmacy, Seoul National University, Seoul, Republic of Korea
4. Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, Republic of Korea
5. Inha Research Institute for Medical Sciences, Inha University School of Medicine, Incheon, Republic of Korea