1. Department of Internal Medicine, Kosin University College of Medicine, Busan 49267, Korea.
2. Department of Preventive Medicine, Kosin University College of Medicine, Busan 49267, Korea
3. Department of Medical Humanities and Social Medicine, Kosin University College of Medicine, Busan 49267, Korea
4. Department of Molecular Biology & Immunology, Kosin University College of Medicine, Busan 49267, Korea