1. Cardiology; Gachon University Gil Medical Center; Incheon Republic of Korea
2. Cardiology; New Korea Hostipital, Gimpo-si; Gyeongggi-do Republic of Korea
3. Gachon Cardiovascular Research Institute; Gachon University; Incheon Republic of Korea
4. Department of Neurology; Gachon University Gil Medical Center; Incheon Republic of Korea
5. Department of Anesthesiology; Gachon University Gil Medical Center; Incheon Republic of Korea
6. Department of Radiology; Gachon University Gil Medical Center; Incheon Republic of Korea