1. Department of Oncology, Haematology and Palliative Care, Landspitali-University Hospital, Reykjavik and University of Iceland, Iceland,
2. Department of Oncology, Haematology and Palliative Care, Landspitali-University Hospital, Reykjavik
3. Department of Oncology, Haematology and Palliative Care, Landspitali-University Hospital, Reykjavik and University of Iceland, Iceland