1. Department of Neurology, University of Maryland School of Medicine, Baltimore, Maryland, USA.
2. Center for Resuscitation Science and Department of Emergency Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
3. Department of Critical Care Medicine, United Memorial Medical Center, Houston, Texas, USA.
4. Division of Neurocritical Care, Departments of Anesthesiology-Critical Care and Neurology, Johns Hopkins University, Baltimore, Maryland, USA.
5. Department of Emergency Medicine, University of Michigan, SIREN Emergency Clinical Trials Network and Neurological Emergencies Treatment, TrialsClinical Coordinating Centers, Ann Arbor, Michigan, USA.