1. Danish Pain Research Center, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
2. Core Center for Molecular Morphology, Section for Stereology and Microscopy, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
3. Department of Clinical Neurophysiology, Aarhus University Hospital, Aarhus, Denmark
4. Department of Oncology, Aarhus University Hospital, Aarhus, Denmark
5. Department of Neurology, Aarhus University Hospital, Aarhus, Denmark