1. Department of Hematology, Oncology and Radiation Physics; Skåne University Hospital; Lund 221 85 Sweden
2. Department of Medical Radiation Physics; Lund University; Malmö 205 02 Sweden
3. Department of Nuclear Medicine; Helsinki University Central Hospital; Helsinki 00290 Finland
4. Department of Radiology; Helsinki University Central Hospital; Helsinki 00290 Finland
5. Department of Radiation Therapy; Comprehensive Cancer Center; Helsinki University Central Hospital; Helsinki 00290 Finland
6. Department of Radiation Sciences; Umeå University; Umeå 90187 Sweden
7. Department of Immunology, Genetics and Pathology; Uppsala University; Uppsala 95105 Sweden