1. Danish Pain Research Center Department of Clinical Medicine Aarhus University Aarhus Denmark
2. Department of Oncology Aarhus University Hospital Aarhus Denmark
3. Nuffield Department of Clinical Neuroscience University of Oxford Oxford UK
4. Brain Function Research Group School of Physiology Faculty of Health Sciences University of the Witwatersrand Johannesburg South Africa
5. Biostatistics Department of Public Health Aarhus University Aarhus Denmark
6. Department of Neurology Aarhus University Hospital Aarhus Denmark
7. Department of Clinical Neurophysiology Aarhus University Hospital Aarhus Denmark