1. University Hospital Frankfurt, Frankfurt, Germany;
2. University Medical Centre Groningen, University of Groningen, Groningen, The Netherlands;
3. Academic Medical Center, Amsterdam, The Netherlands;
4. Rigshospitalet, Copenhagen, Denmark;
5. Vivantes Klinikum, Berlin, Germany;
6. University Medical Centre Utrecht and University Utrecht, Utrecht, The Netherlands;
7. uniQure biopharma B.V., Amsterdam, The Netherlands;
8. Azienda Ospedaliera Universitaria Careggi, Florence, Italy;
9. Institute for Transfusion Medicine and Immunohematology, Goethe University Hospital Medical School, German Red Cross Blood Donor Service, Frankfurt, Germany;
10. Department of Medicine/Hematology, University of Washington, Seattle, WA;
11. Chiesi Farmaceutici S.p.A., Parma, Italy; and
12. Erasmus University Medical Centre, Rotterdam, The Netherlands