[1] Lawrence Livermore Natl Lab, NSF, CBST, Livermore, CA 94551 USA
[2] Massachusetts Gen Hosp, Wellman Labs Photomed, Boston, MA 02114 USA
[3] Natl Yang Ming Univ, Sch Med Technol & Engn, Taipei 112, Taiwan
[4] Natl Sci Fdn, Arlington, VA 22230 USA
[5] Duke Univ, Dept Biomed Engn, Durham, NC 27708 USA
[6] Univ Calif Davis, NSF, CBST, Sacramento, CA 95817 USA