1. Department of Clinical Immunology; Rigshospitalet, Copenhagen University Hospital; Copenhagen Denmark
2. Division of Epidemiology; Statens Serum Institut; Copenhagen Denmark
3. Department of Haematology; Rigshospitalet, Copenhagen University Hospital; Copenhagen Denmark
4. Biotech Research and Innovation Centre; University of Copenhagen; Copenhagen Denmark
5. Department of Clinical Immunology; Naestved Hospital; Naestved Denmark
6. Department of Clinical Immunology; Odense University Hospital; Odense Denmark
7. Department of Clinical Immunology; Aarhus University Hospital; Aarhus Denmark
8. Department of Clinical Immunology; Aalborg University Hospital; Aalborg Denmark
9. Department of Medical Epidemiology and Biostatistics; Karolinska Institute; Stockholm Sweden
10. Haematology Centre; Karolinska University Hospital; Stockholm Sweden