1. Department of Family Medicine & Health Promotion Center; Seoul National University Hospital; Seoul Korea
2. Cancer Survivorship Clinic; Seoul National University Cancer Hospital; Seoul Korea
3. Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology; Sungkyunkwan University School of Medicine; Seoul Korea
4. Department of Health, Behavior, and Society; Johns Hopkins Bloomberg School of Public Health; Baltimore MD USA
5. Department of Epidemiology; Johns Hopkins Bloomberg School of Public Health; Baltimore MD USA
6. Cancer Policy Branch, National Cancer Control Institute; National Cancer Center; Goyang Korea
7. Department of Hemato-oncology, Daegu-Gyeongbuk Regional Cancer Center; Kyungbuk National University Hospital; Daegu Korea
8. Department of Obstetrics & Gynecology, Busan Regional Cancer Center; Pusan National University Hospital; Busan Korea
9. Gastric Cancer Branch, Research Institute and Hospital; National Cancer Center; Goyang Korea