Sungkyunkwan University - Heart Vascular and Stroke Institute, Chonnam National University - Chonnam National University Hospital, Department of Clinical Research Design and Evaluation, SAIHST, Sungkyunkwan University, Ajou University, University of Iowa, Chosun University - Chosun University Hospital, Chosun University - Chosun University Hospital, Catholic University of Korea, Catholic University of Korea, Chonnam National University - Chonnam National University Hospital, Chonnam National University - Division of Cardiology, Chonnam National University - Chonnam National University Hospital, Yonsei University - Wonju College of Medicine, Inje University - Ilsan Paik Hospital, Inje University - Ilsan Paik Hospital, Chungbuk National University - College of Medicine, Inha University Hospital, Bucheon Sejong Hospital - Division of Cardiology, Gyeongsang National University - Gyeongsang National University Hospital, Gyeongsang National University - Gyeongsang National University Hospital, Keimyung University Dongsan Medical Center, Keimyung University Dongsan Medical Center, Seoul National University - Boramae Medical Center, Sungkyunkwan University - Heart Vascular and Stroke Institute, Sungkyunkwan University - Heart Vascular and Stroke Institute, Sungkyunkwan University - Heart Vascular and Stroke Institute, Sungkyunkwan University - Heart Vascular and Stroke Institute, Sungkyunkwan University - Heart Vascular and Stroke Institute, Sungkyunkwan University - Heart Vascular and Stroke Institute, Sungkyunkwan University - Heart Vascular and Stroke Institute, Sungkyunkwan University - Heart Vascular and Stroke Institute, Johns Hopkins University - Welch Center for Prevention, Epidemiology and Clinical Research, Sungkyunkwan University - Samsung Medical Center, Sungkyunkwan University - Heart Vascular and Stroke Institute, Sungkyunkwan University - Samsung Medical Center, Sungkyunkwan University - Heart Vascular and Stroke Institute and Independent