1 Department of Public Health, Graduate School, Korea University, Seoul, Republic of Korea.
2 Department of Preventive Medicine, Korea University College of Medicine, Seoul, Republic of Korea.
3 BK21FOUR R&E Center for learning Health Systems, Korea University, Seoul, Republic of Korea.
4 Department of Preventive Medicine, Eulji University School of Medicine, 77, Gyeryong-ro 771beon-gil, Jung-gu, Daejeon, 34824, Republic of Korea.
5 Department of Preventive Medicine, Eulji University School of Medicine, 77, Gyeryong-ro 771beon-gil, Jung-gu, Daejeon, 34824, Republic of Korea. jslim@eulji.ac.kr.
6 Department of Psychiatry, Gil Medical Center, Gachon University College of Medicine, Incheon, Republic of Korea.