1. Department of Radation Oncology; Yonsei University Wonju College of Medicine; Wonju Korea, South
2. Department of Hematology-Oncology, Division of Internal Medicine; Wonju Severance Christian Hospital, Yonsei University Wonju College of Medicine; Wonju Korea, South
3. Center of Evidence Based Medicine, Institute of Convergence Science; Yonsei University; Seoul Korea, South
4. Department of Nephrology; Yonsei University Wonju College of Medicine; Wonju Korea, South
5. Department of Urology; Yonsei University Wonju College of Medicine; Wonju Korea, South
6. Department of Otorhinolaryngology Head and neck surgery; Yonsei University Wonju College of Medicine; Wonju Korea, South
7. Yonsei Wonju Medical Library; Yonsei University Wonju College of Medicine; Wonju Korea, South