1. Hannover Medical School Hannover Germany
2. Hospital Universitari I Politècnic La Fe Valencia Spain
3. University Hospital Valle d'Hebron Barcelona Spain
4. Bonn University Bonn Germany
5. Hospital Son Espases Palma de Mallorca Spain
6. Hospital Rio Hortega Valladolid Spain
7. Hospital Virgen Arrixaca Murcia Spain
8. Hospital Universitario La Paz Autónoma Univeristy Madrid Madrid Spain
9. Olgahospital Klinikum Stuttgart Stuttgart Germany
10. Rhine Ruhr Coagulation Centre Duisburg Germany
11. StatConsult GmbH Magdeburg Germany