1. Department of Anatomy, BK21 Plus KNU Biomedical Convergence Program, School of Medicine, Kyungpook National University, Daegu 702‑422, Republic of Korea
2. Department of Preventive Medicine, School of Medicine, Kyungpook National University, Daegu 702‑422, Republic of Korea
3. Department of Internal Medicine, School of Medicine, Kyungpook National University, Daegu 702‑422, Republic of Korea