1. Department of Urology; Yonsei University Wonju College of Medicine; Wonju Korea, South
2. Center of Evidence Based Medicine, Institute of Convergence Science; Yonsei University; Seoul Korea, South
3. School of Nursing and Midwifery; Queen's University Belfast; Belfast UK
4. Department of Urology; University of Minnesota; Minneapolis Minnesota USA
5. Department of Radiology, Division of Interventional Radiology; University of Minnesota; Minneapolis Minnesota USA
6. Division of Interventional Radiology and Vascular Imaging; University of Minnesota; Minneapolis Minnesota USA
7. Department of Urology; Massachusetts General Hospital; Boston Massachusetts USA
8. Department of Urology; Ewha Womans University; Seoul Korea, South
9. Yonsei Wonju Medical Library; Yonsei University Wonju College of Medicine; Wonju Korea, South
10. Urology Section; Minneapolis VA Health Care System; Minneapolis Minnesota USA