1 Department of Critical Care Medicine, University of Pittsburgh School of Medicine, United States; Anesthesiology, Pediatrics, and Clinical and Translational Sciences, University of Pittsburgh School of Medicine, United States; Safar Center for Resuscitation Research, University of Pittsburgh School of Medicine, United States. Electronic address: kochanekpm@ccm.upmc.edu.
2 Department of Emergency Medicine, University of Pittsburgh School of Medicine, United States; Ronald D Stewart Endowed Chair of Emergency Medicine Research, University of Pittsburgh School of Medicine, United States.