1. 1Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
2. 2Vascular Biology Unit, IFOM ETS—The AIRC Institute of Molecular Oncology, Milan, Italy
3. 3Department of Biomaterials and Technology/Wood Science, Swedish University of Agricultural Sciences, Uppsala, Sweden
4. 4Department of Neurosurgery, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
5. 5Department of Clinical Medicine, Aalborg University Hospital, Aalborg, Denmark