| Affiliation: | 1. Department of Anesthesiology and Critical Care Medicine, Johns Hopkins Bayview Medical Center, Baltimore, MD, USA;2. Adult and Trauma Surgery, Department of Orthopaedic Surgery, Johns Hopkins Bayview Medical Center, Baltimore, MD, USA;3. Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA;4. Division of Geriatric Medicine and Gerontology, Psychiatry and Behavioral Sciences and Neuropathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA;5. Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA;6. Department of Anesthesiology and Critical Care Medicine, Johns Hopkins Hospital, Baltimore, MD, USA;7. Department of Neurosurgery, Johns Hopkins Hospital, Baltimore, MD, USA;8. Behavioral Pharmacology Research Unit, Johns Hopkins University School of Medicine, BPRU, JV Brady Behavioral Biology Research Center, Baltimore, MD, USA;9. Department of Orthopedic Surgery, University of Arkansas for Medical Sciences, Little Rock, AR, USA;10. Departments of Medicine, Johns Hopkins University, Baltimore, MD, USA;11. Biostatistics, Johns Hopkins University, Baltimore, MD, USA;12. Epidemiology, Johns Hopkins University, Baltimore, MD, USA |
