1. Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, New York
2. Center for Immunology and Microbial Disease, Albany Medical College, Albany, New York
3. Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, New York; Center for Immunology and Microbial Disease, Albany Medical College, Albany, New York
4. Faculte de Medicine Lariboisiere St-Louis, Universite D. Diderot, Paris, France