1 Department of Family Medicine, Yongin Severance Hospital, Yongin 16995, Republic of Korea; Department of Family Medicine, Yonsei University College of Medicine, Seoul 03722, Republic of Korea.
2 Department of Family Medicine, Yongin Severance Hospital, Yongin 16995, Republic of Korea; Department of Family Medicine, Yonsei University College of Medicine, Seoul 03722, Republic of Korea. Electronic address: [email protected].