1. Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
2. School of Medicine, Kangwon National University, Chuncheon, Republic of Korea
3. Department of Urology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
4. Department of Medical Device Management and Research, Samsung Advanced Institute of Health Sciences and Technology, Sungkyunkwan University, Seoul, Republic of Korea
5. Department of Biostatistics and Clinical Epidemiology Center, Samsung Hospital, Seoul, Republic of Korea
6. Department of Mathematical and Statistical Sciences, University of Alberta, Edmonton, Alberta, Canada