[1] Dongtan Sacred Heart Hospital,Division of Cardiology, Department of Internal Medicine
[2] Soongsil University,Department of Statistics and Actuarial Science
[3] Seoul National University College of Medicine,Department of Medicine
[4] Kangdong Sacred Heart Hospital,Department of Neurology
[5] Chuncheon Sacred Heart Hospital,Department of Neurology
[6] Hallym University Sacred Heart Hospital,Department of Neurology