1. Department of Pharmacology and Clinical Neurosciences; Division of Neuro, Head and Neck; Umeå University; Umeå Sweden
2. Department of Neuromedicine and Movement Science; Norwegian University of Science and Technology; Trondheim Norway
3. Department of Surgery; Umeå University; Umeå Sweden
4. Department of Radiation Sciences; Umeå University; Umeå Sweden