1. R. Adams Cowley Shock Trauma Center, Program in Trauma, University of Maryland School of Medicine, Baltimore, MD, USA
2. Section of Neurocritical Care and Emergency Neurology, Program in Trauma, Department of Neurology, University of Maryland School of Medicine, Baltimore, MD, USA
3. Department of Otolaryngology, University of Maryland School of Medicine, Baltimore, MD, USA
4. Zuckerberg San Francisco General Hospital and Trauma Center, Program in Trauma, University of California San Francisco School of Medicine, San Francisco, CA, USA