1. Haemostaseology, Department of Internal Medicine II, Institute of Transfusion Medicine, University Hospital, Goethe University Frankfurt am Main, Frankfurt, Germany
2. Department for Children and Adolescents Medicine, University Hospital Frankfurt, Frankfurt am Main, Germany
3. Division of Cardiology, Department of Internal Medicine III, University Hospital Frankfurt, Frankfurt am Main, Germany
4. Department of Sports Medicine, University of Wuppertal, Wuppertal, Germany
5. IMD Blood Coagulation Centre, Bad Homburg, Germany