1. Department of Public Health Science and Institute of Health and Environment, Graduate School of Public HealthSeoul National University Seoul Korea
2. Department of Internal MedicineInje University Ilsan Paik Hospital Goyang Gyeonggi Korea
3. Department of Internal Medicine, Seoul National University College of MedicineSeoul National University Bundang Hospital Seongnam Gyeonggi Korea
4. Department of Cancer Control and Population Health, Graduate School of Cancer Science and PolicyNational Cancer Center Goyang Gyeonggi Korea