1. Department of Neurosurgery, Río Hortega University Hospital, 47014 Valladolid, Spain
2. Department of Physics and Technology, UiT The Arctic University of Norway, 9019 Tromsø, Norway
3. Department of Neurosurgery, 12 de Octubre University Hospital (i+12), 28041 Madrid, Spain
4. Department of Surgery, School of Medicine, Complutense University, 28040 Madrid, Spain
5. Instituto de Investigación Sanitaria, 12 de Octubre University Hospital (i+12), 28041 Madrid, Spain
6. Department of Neurosurgery, St. Olavs University Hospital, 7030 Trondheim, Norway
7. Department of Neuromedicine and Movement Science, Norwegian University of Science and Technology, 7034 Trondheim, Norway
8. Department of Radiology, Río Hortega University Hospital, 47012 Valladolid, Spain
9. Department of Circulation and Medical Imaging, Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology (NTNU), 7034 Trondheim, Norway
10. Department of Radiology and Nuclear Medicine, St. Olavs Hospital, Trondheim University Hospital, 7030 Trondheim, Norway
11. Department of Pathology, Río Hortega University Hospital, 47014 Valladolid, Spain
12. The PET Imaging Center, University Hospital of North Norway, 9019 Tromsø, Norway