aDepartment of Neurology, University Hospital of Northern Norway, Tromsø, Norway
bPain Clinic, University Hospital of Northern Norway, Tromsø, Norway
cDepartment of Clinical Medicine, Faculty of Health Sciences, UiT The Arctic University of Norway, Tromsø, Norway
dTromsø PET Imaging Center, University Hospital of Northern Norway, Tromsø, Norway
eDepartment of Radiology, University Hospital of Northern Norway, Tromsø, Norway
fDepartment of Physical Health and Ageing, Division of Mental and Physical Health, Norwegian Institute of Public Health, Oslo, Norway
gDepartment of Research and Development, Division of Emergencies and Critical Care, Oslo University Hospital, Oslo, Norway
hDepartment of Pain Management and Research, Oslo University Hospital, Oslo, Norway
iInstitute of Clinical Medicine, University of Oslo, Oslo, Norway
jDepartment of Chronic Diseases, Division of Mental and Physical Health, Norwegian Institute of Public Health, Oslo, Norway
*Corresponding author. Address: Pain Clinic, University Hospital of North Norway, Postboks 100, 9038 Tromsø, Norway. Tel.: +47 91639404; fax: +47 776 69451. E-mail address: [email protected] (T. A. Melum).
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