1. Department of Anatomy, Physiology and Genetics, Uniformed Services University, Bethesda, Maryland, USA.
2. Department of Neuroscience, Uppsala University Hospital, Uppsala, Sweden.
3. Department of Neuroscience, Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden.
4. Department of Clinical Neuroscience, Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden.
5. Department of Neurosurgery, Karolinska University Hospital, Stockholm, Sweden.
6. Department of Perioperative Medicine and Intensive Care, Karolinska University Hospital, Stockholm, Sweden.
7. Section of Perioperative Medicine and Intensive Care, Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden.
8. Department of Neurology, Karolinska University Hospital, Stockholm, Sweden.