1. Department of Family Medicine, Pusan National University School of Medicine, Yangsan, South Korea
2. Department of Preventive Medicine, Pusan National University School of Medicine, Yangsan, South Korea
3. Department of Medical Education, Pusan National University School of Medicine, Yangsan, South Korea
4. Department of Family Medicine and Research Institute of Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, South Korea
5. Department of Family Medicine, Kosin University College of Medicine, Busan, South Korea
6. Department of Medical Education, Kosin University College of Medicine, Busan, South Korea
7. Department of Family Medicine, Inje University College of Medicine, Busan, South Korea
8. Department of Infective Medicine, Dong-A University College of Medicine, Busan, South Korea
9. Department of Family Medicine, Dong-A University College of Medicine, Busan, South Korea