1. Telemedicine and Advanced Technology Research Center, Department of Defense Biotechnology High Performance Computing Software Applications Institute, U.S. Army Medical Research and Materiel Command, Fort Detrick, MD 21702-5012
2. Department of Bioengineering, Stanford University, Stanford, CA 94305-6175
3. Auckland Bioengineering Institute, University of Auckland, Auckland 1010, New Zealand
4. U.S. Army Research Institute of Environmental Medicine, Natick, MA 01760-5007
5. Telemedicine and Advanced Technology Research Center, Department of Defense Biotechnology High Performance Computing Software Applications Institute, U.S. Army Medical Research and Materiel Command, MCMR-TT, 504 Scott Street, Fort Detrick, MD 21702-5012 e-mail:
6. Telemedicine and Advanced Technology Research Center, Department of Defense Biotechnology High Performance Computing Software Applications Institute, United States Army Medical Research and Materiel Command, Fort Detrick, MD 21702-5012