1. Department of Clinical Immunology; Copenhagen University Hospital; Copenhagen Denmark
2. Department of Technology; Faculty of Health and Technology; Metropolitan University College; Copenhagen Denmark
3. Department of Clinical Immunology; Naestved Hospital; Naestved Denmark
4. Department of Epidemiology Research; Statens Serum Institut; Copenhagen Denmark
5. Department of Clinical Immunology; Aarhus University Hospital; Aarhus Denmark
6. Department of Clinical Immunology; Aalborg University Hospital; Aalborg Denmark