1. Department of Clinical immunology Copenhagen University Hospital Kobenhavn Denmark
2. Sanquin Blood Supply Foundation Amsterdam The Netherlands
3. Finnish Red Cross Blood Service Helsinki Finland
4. Scottish National Blood Transfusion Service Edinburgh Scotland
5. National Health Service Blood and Transplant Leeds UK
6. CSL Plasma GmbH Göttingen Germany
7. Interregional Blood Transfusion Service SRC Berne and University of Lausanne Berne Switzerland
8. Centro Nazionale Sangue and Istituto Superiore di Sanità Italy
9. Department of Clinical Immunology Karolinska University Hospital Stockholm Sweden
10. TRIP Hemovigilance and Biovigilance Office Leiden The Netherlands
11. Institute of Legal Medicine University Medical Center Hamburg Hamburg Germany
12. Banc de Sang I Teixits Barcelona Spain
13. Bioef‐Fundacion Vasca de Innovacion e Investigation Sanitarias‐Osakidetza‐Centro Vasco de Transfusión y Tejidos Humanos Galdakao Spain
14. Blood transfusion Center of Slovenia Ljubljana Slovenia