1. Department of Otorhinolaryngology, Head and Neck Surgery & Audiology Rigshospitalet Copenhagen Denmark
2. Hematopathology Section, Department of Pathology Rigshospitalet Kobenhavn Denmark
3. Department of Hematology Rigshospitalet University of Copenhagen Kobenhavn Denmark
4. Department of Hematology Aalborg University Hospital Aalborg Denmark
5. Department of Hematology Odense University Hospital Odense Denmark
6. Department of Hematology Aarhus University Hospital Aarhus Denmark
7. Department of Hematology Holstebro Central Hospital Holstebro Denmark
8. Eye Pathology Section, Department of Pathology Rigshospitalet University of Copenhagen Kobenhavn Denmark