1. Department of Clinical Neuroscience, Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden.
2. Department of Neuroradiology, Karolinska University Hospital, Stockholm, Sweden.
3. Department of Neurosurgery, Helsinki University Hospital and University of Helsinki, Helsinki, Finland.
4. Department of Neurosurgery, Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden.
5. Department of Section for Perioperative Medicine and Intensive Care, Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden.
6. Department of Neurology, Karolinska University Hospital, Stockholm, Sweden.