1. Department of Radiation Oncology, Samsung Medical Center Sungkyunkwan University School of Medicine Seoul Republic of Korea
2. Department of Internal Medicine, Division of Hematology‐Oncology, Samsung Medical Center Sungkyunkwan University School of Medicine Seoul Republic of Korea
3. Department of Thoracic and Cardiovascular Surgery, Samsung Medical Center Sungkyunkwan University School of Medicine Seoul Republic of Korea
4. Statistics and Data Center Research Institute for Future Medicine, Samsung Medical Center Seoul Republic of Korea