1. Division of Cardiology, Department of Internal Medicine, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.
2. Catholic Research Institute for Intractable Cardiovascular Disease, College of Medicine, The Catholic University of Korea, Seoul, Korea.
3. Department of Preventive Medicine and Public Health, Catholic Kwandong University College of Medicine, Gangneung, Korea.
4. Department of Neurology, International St. Mary’s Hospital, Catholic Kwandong University College of Medicine, Incheon, Korea.
5. Institute for Occupational and Environmental Health, Catholic Kwandong University, Gangneung, Korea.
6. Division of Cardiology, Department of Internal Medicine, Bucheon St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.