1. The Department of Dermatology, Zealand University, Roskilde, Denmark
2. Department of Clinical Immunology, Aarhus University Hospital, Aarhus, Denmark
3. Department of Clinical Immunology, Aalborg University Hospital, Aalborg, Denmark
4. Department of Clinical Immunology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
5. Department of Clinical Immunology, Odense University Hospital, Odense, Denmark
6. Centre for Cancer Research, Danish Cancer Society, Denmark
7. Statens Serum Institut, Copenhagen, Denmark
8. Department of Clinical Immunology, Zealand University Hospital, Køge, Denmark