Department of Mechanical and Environmental Engineering, University of California, Santa Barbara, CA 93106; Department of Biochemical Science and Engineering, Kyushu Institute of Technology, Izuka, 820-8502, Japan; Department of Control and Dynamical Systems, California Institute of Technology, Pasadena, CA 91125; and Departments of Stomatology and Microbiology and Immunology, University of California, San Francisco, CA 94143(2005-01-24時点)