1. Institute of Neuroscience and Physiology, University of Gothenburg , Gothenburg , Sweden
2. Department of Surgery, Östra/Sahlgrenska University Hospital , Gothenburg , Sweden
3. Department of Plastic and Reconstructive Surgery, Karolinska University Hospital , Stockholm , Sweden
4. Department of Molecular Medicine and Surgery, Karolinska Institute , Stockholm , Sweden
5. Department of Radiology, Sahlgrenska University Hospital , Gothenburg , Sweden
6. Department of Neurosurgery, Sahlgrenska University Hospital , Gothenburg , Sweden
7. Department of Clinical Neuroscience and Medicine, Karolinska Institute , Stockholm , Sweden
8. Department of Neurosurgery, Karolinska University Hospital , Stockholm , Sweden
9. Department of Global Public Health, Karolinska Institute , Sweden
10. Department of Neurosurgery, Copenhagen University Hospital , Copenhagen , Denmark