[1] Tufts Univ, Sch Med, Baystate Hlth, Springfield, MA 01199 USA
[2] Univ Maryland, Sch Med, Baltimore, MD 21201 USA
[3] Johns Hopkins Med Inst, Baltimore, MD 21205 USA
[4] Washington Univ, St Louis, MO USA
[5] Univ N Carolina, Chapel Hill, NC USA
[6] New York State Dept Hlth, Wadsworth Ctr, Albany, NY USA
[7] Oregon Hlth & Sci Univ, Portland, OR 97201 USA
[8] Massachusetts Gen Hosp, Boston, MA 02114 USA
[9] Univ Oxford, Oxford, England
[10] Brigham & Womens Hosp, Boston, MA 02115 USA
[11] Harvard Univ, Sch Med, Boston, MA 02115 USA
[12] Carolinas Med Ctr, Charlotte, NC USA
[13] Nanosphere, Northbrook, IL USA
[14] Univ Hosp Aintree, Liverpool, Merseyside, England
[15] Univ Florida, Gainesville, FL USA
[16] ITC, Edison, NJ USA