Affiliation: | 1.Department of Family Medicine, Seoul National University Hospital, Seoul, Republic of Korea ;2.Public Healthcare Center, Seoul National University Hospital, Seoul, South Korea ;3.Department of Biomedical Science, Seoul National University College of Medicine, 103 Daehak-ro, Jongno-gu, Seoul, Republic of Korea, 03080 ;4.Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea ; |