1. Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia.
2. Department of Mechanical and Aerospace Engineering, University of Virginia, Charlottesville, Virginia.
3. Department of Radiology and Medical Imaging, University of Virginia, Charlottesville, Virginia.
4. Department of Anesthesiology, University of Virginia, Charlottesville, Virginia.
5. Operational and Undersea Medicine Directorate, Naval Medical Research Center, Silver Spring, Maryland.