Department of Electrical and Computer Engineering, The University of Texas at Austin, Austin, Texas 78712 (A.F.Z., U.U., H.F., R.R.-K.); Candela Corporation, Wayland, Massachusetts (A.D.); and Department of Head and Neck Surgery, The UT MD Anderson Cancer Center, Houston, Texas 77030 (A.G., R.J., B.K.) (At 1999-03)