[1] Yonsei University College of Medicine,Department of Preventive Medicine
[2] The Catholic University of Korea,Department of Internal Medicine, College of Medicine
[3] Hanyang University College of Medicine,Department of Internal Medicine
[4] Chonnam University,Department of Internal Medicine, School of Medicine
[5] Seoul National University College of Medicine,Department of Internal Medicine, Seoul National University Bundang Hospital
[6] Seoul National University College of Medicine,Department of Internal Medicine
[7] Kyungpook National University School of Medicine,Division of Cardiology, Department of Internal Medicine
[8] Eulji General Hospital,Department of Neurology
[9] Eulji University College of Medicine,Department of Internal Medicine
[10] Yonsei University College of Medicine,Department of Internal Medicine, School of Medicine
[11] Ewha Womans University,undefined