1. Department Immunopathology Sanquin Blood Supply Amsterdam The Netherlands
2. SAINBIOSE, INSERM, U1059 University of Lyon, Université Jean‐Monnet‐Saint‐Etienne France France
3. Etablissement Français du Sang Auvergne‐Rhône‐Alpes Saint‐Étienne France
4. Department of Hematology, Division of Internal Medicine Kantonsspital Lucerne, Lucerne and University of Berne Berne Switzerland