1 DoD Biotechnology High Performance Computing Software Applications Institute, Telemedicine and Advanced Technology Research Center, US Army Medical Research and Materiel Command, Ft. Detrick, Maryland Department of Anesthesiology, Emory University School of Medicine, Atlanta, Georgia Departments of Anesthesiology and Surgery, Duke University School of Medicine, Durham, North Carolina DoD Biotechnology High Performance Computing Software Applications Institute, Telemedicine and Advanced Technology Research Center, US Army Medical Research and Materiel Command, Ft. Detrick, Maryland.