1. Department of Neurosurgery, Rigshospitalet, Copenhagen, Denmark
2. Department of Clinical Research, Copenhagen University Hospital, Amager and Hvidovre Hospital Hvidovre, Denmark
3. Research Unit Nursing and Health Care, Aarhus University, Aarhus, Denmark
4. Hammel Neurorehabilitation and Research Centre, Hammel, Denmark
5. Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
6. Department of Neurology, Rigshospitalet, Copenhagen, Denmark