1. Cancer Education Center; Samsung Comprehensive Cancer Center; Samsung Medical Center; Sungkyunkwan University School of Medicine; Seoul Korea
2. Krieger School of Arts and Sciences; Johns Hopkins University; Baltimore MD USA
3. Department of Health Sciences and Technology, SAIHST; Sungkyunkwan University; Seoul Korea
4. Department of Surgery; Samsung Medical Center; Sungkyunkwan University School of Medicine; Seoul Korea
5. Department of Hematology and Oncology; Samsung Medical Center; Sungkyunkwan University School of Medicine; Seoul Korea
6. Department of Surgery; Konkuk University Medical Center; Konkuk University School of Medicine; Seoul Korea
7. Department of Health, Behavior and Society; Johns Hopkins Bloomberg School of Public Health; Baltimore MD USA
8. Department of Epidemiology; Johns Hopkins Bloomberg School of Public Health; Baltimore MD USA