1. From the Center for Cohort Studies, Total Healthcare Center (Y.C., S.R.), Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, South Korea
2. Department of Occupational and Environmental Medicine (Y.C., S.R.), Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, South Korea
3. Department of Clinical Research Design and Evaluation, Samsung Advanced Institute for Health Sciences & Technology, Sungkyunkwan University, Seoul, South Korea (Y.C., S.R.)
4. Department of Urology, and Urological Biomedicine Research Institute, Soonchunhyang University Seoul Hospital, Soonchunhyang University College of Medicine, Seoul, South Korea (J.H.K)
5. Department of Healthcare Management, Eulji University, Seongnam, Republic of Korea (J.-W.N.)
6. Global Health Unit, Department of Health Sciences, University Medical Centre Groningen, University of Groningen, the Netherlands (J.-W.N.)
7. Department of Urology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, South Korea (Y.-S.C., H.J.P., K.J.J.).