1. Division of Cardiology, Maryknoll Medical Center
2. Division of Cardiology, Gachon University, Gil Hospital
3. Division of Cardiology, Catholic University, St Paul's Hospital
4. Division of Cardiology, Soonchunhyang University
5. Division of Cardiology, College of Medicine, Inha University
6. Division of Cardiology, NHIC Ilsan Hospital
7. Division of Cardiology, Dankook University