1. Department of Thoracic and Cardiovascular Surgery, School of Medicine, Chungnam National University School of Medicine, DaeJeon, Republic of Korea.
2. Department of Pathology, School of Medicine, Chungnam National University School of Medicine, DaeJeon, Republic of Korea.
3. Department of Physiology, School of Medicine, Chungnam National University School of Medicine, DaeJeon, Republic of Korea.