| Affiliation: | 1. Department of Radiation Oncology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea;2. Department of Medical Device Management and Research, SAIHST, Sungkyunkwan University, Seoul, Korea;3. Department of Radiation Oncology, Asan Liver Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea;4. Center for Liver Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Korea;5. Department of Radiation Oncology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea;6. Department of Radiation Oncology, Chonnam National University Medical School, Gwangju, Korea;7. Department of Radiation Oncology, Seoul National University College of Medicine, Seoul, Korea;8. Department of Radiation Oncology, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, Korea;9. Department of Radiation Oncology, Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea;10. Department of Radiation Oncology, Korea Institute Radiological & Medical Sciences, Seoul, Korea;11. Department of Radiation Oncology, Ansan Hospital, Korea University Medical Center, Ansan, Korea;12. Department of Biostatistics, Yonsei University College of Medicine, Seoul, Korea;13. Department of Radiation Oncology, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea |
