1. Department of Emergency Medicine and the Division of Hyperbaric Medicine; R Adams Cowley Shock Trauma Center; University of Maryland School of Medicine; Baltimore MD
2. Department of Emergency Medicine; Yale University; New Haven CT
3. Department of Anesthesiology; Divisions of Trauma Anesthesiology and Surgical Critical Care; Baltimore MD
4. Department of Emergency Medicine; Johns Hopkins University; Baltimore MD
5. Department of Surgery; University of Michigan; Ann Arbor MI