| Affiliation: | 1. Department of Anesthesiology and Intensive Care, Sahlgrenska Academy at University of Göteborg, Göteborg, Sweden;2. Department of Clinical Immunology and Transfusion Medicine, Karolinska University Hospital, Stockholm, Sweden;3. Department of Clinical Immunology, Næstved Hospital, Næstved, Denmark;4. Department of Clinical Immunology, Aalborg University Hospital, Aalborg, Denmark;5. Department of Epidemiology Research, Statens Serum Institut, Copenhagen, Denmark;6. Department of Epidemiology Research, Statens Serum Institut, Copenhagen, Denmark Department of Haematology, Copenhagen University Hospital, Copenhagen, Denmark;7. Department of Medicine, Solna, Clinical Epidemiology Unit, Karolinska Institutet, Stockholm, Sweden |
