1. Department of UrologySeoul National University Boramae Medical CenterSeoul Republic of Korea
2. Department of BiostatisticsSeoul National University Boramae Medical CenterSeoul Republic of Korea
3. Department of Urology, College of MedicineSeoul National UniversitySeoul Republic of Korea
4. Department of Public Health ScienceSeoul National UniversitySeoul Republic of Korea
5. Institute of Health and Environment, Seoul National UniversitySeoul Republic of Korea