1. Department of Internal Medicine, Division of Cardiology, Kangwon National University School of Medicine, Chuncheon, South Korea
2. Division of Cardiology, Ulsan Medical Center, Ulsan Hospital, Ulsan, South Korea
3. Department of Medical II., Coburg Hospital, Coburg, Germany
4. Department of Cardiology, Asklepios Hospital Harburg, Hamburg, Germany
5. East Lancashire Hospitals NHS Trust, Blackburn, Lancashire, UK
6. Institute for Clinical Hemostasiology and Transfusion Medicine, University of Saarland, Saarbrücken, Germany