1. Department of Anatomy, Physiology and Genetics, Uniformed Services University, Bethesda, Maryland.
2. Division of Health Science, University of South Australia, Adelaide, Australia.
3. Division of Neurosurgery, Department of Clinical Neuroscience, University of Cambridge, Cambridge, United Kingdom.
4. Department of Neuroscience, Karolinska Institutet, Stockholm, Sweden.
5. Department of Physiology and Pharmacology, Section of Perioperative Medicine and Intensive Care, Karolinska Institutet, Stockholm, Sweden.
6. Department of Neurosurgery, David Geffen School of Medicine, University of California, Los Angeles, California.