1. Department of Health Promotion and Behavioral Sciences, University of Texas Health Science Center at Houston School of Public Health, Houston, TX, USA.
2. Department of Public Health Science, Graduate School of Public Health, Seoul National University, Seoul, Korea.
3. Department of Urology, St. Vincent’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.
4. Department of Urology, Uijeongbu St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.
5. Institute of Health and Environment, Seoul National University, Seoul, Korea.