1. Department of Urology; Severance Hospital; Urological Science Institute; Yonsei University College of Medicine; Seoul Korea
2. Department of Urology; Chonnam National University Medical School; Gwangju Korea
3. Department of Urology; Inje University College of Medicine; Busan Korea
4. Clinical Trial Center for Medical Device; Severance Hospital; Yonsei University College of Medicine; Seoul Korea
5. Robot and Minimal Invasive Surgery Center; Severance Hospital; Yonsei University College of Medicine; Seoul Korea