Affiliation: | 1. Department of Family Medicine, Dongnam Institute of Radiological & Medical Sciences, , Busan, Korea;2. Department of Social and Preventive Medicine, Samsung Biomedical Research Institute, Sungkyunkwan University School of Medicine, , Suwon, Korea;3. Division of Cancer Policy and Management, National Cancer Control Research Institute, National Cancer Center, , Goyang, Korea;4. Department of Family Medicine, Dong‐A University College of Medicine, , Busan, Korea |