1. Division of Cardiology, Department of Internal Medicine; Dong-A University Hospital; Busan Republic of Korea
2. Division of Cardiology, Department of Internal Medicine; Catholic University of Daegu; Daegu Republic of Korea
3. Division of Cardiology, Department of Internal Medicine; Dongkang Medical Center; Ulsan Republic of Korea
4. Division of Cardiology, Department of Internal Medicine; Ulsan University Hospital; Ulsan Republic of Korea
5. Division of Cardiology, Department of Internal Medicine; Daedong Hospital; Busan Republic of Korea
6. Division of Cardiology, Department of Internal Medicine; Keimyung University Hospital; Daegu Republic of Korea
7. Division of Cardiology, Department of Internal Medicine; Inje University, Busan Paik Hospital; Busan Republic of Korea
8. Division of Cardiology, Department of Internal Medicine; Sungkyunkwan University, Samsung Changwon Hospital; Changwon Republic of Korea
9. Division of Cardiology, Department of Internal Medicine; Busan National University Hospital; Busan Republic of Korea
10. Division of Cardiology, Department of Internal Medicine; Yeungnam University Hospital; Daegu Republic of Korea
11. Division of Cardiology, Department of Internal Medicine; Gyeongsang University Hospital; Jinju Republic of Korea
12. Division of Cardiology; Daegu Fatima Hospital; Daegu Republic of Korea
13. Division of Cardiology; Bong Seong Memorial Hospital; Busan Republic of Korea