1. School of Medicine, Brain Injury Outcomes Division, Johns Hopkins University, Baltimore, MD, USA
2. Department of Neurosurgery, Sichuan University, West China School of Medicine, Chengdu, China
3. Department of Neurology, Neurosurgery, and Anesthesiology and Critical Care Medicine, Johns Hopkins University, Baltimore, MD, USA
4. Department of Neurology, Hospital of the Brothers of St. John, Eisenstadt, Austria