[1] Angeles Clin & Res Inst, Los Angeles, CA USA
[2] Dana Farber Canc Inst, Boston, MA 02115 USA
[3] Beth Israel Deaconess Med Ctr, Boston, MA 02215 USA
[4] St Marys Hosp, San Francisco, CA USA
[5] Vanderbilt Univ, Med Ctr, Nashville, TN USA
[6] Antoni van Leeuwenhoek Hosp, Netherlands Canc Inst, Amsterdam, Netherlands
[7] Medarex Inc, Bloomsbury, NJ USA
[8] Bristol Myers Squibb Co, Wallingford, CT 06492 USA
[9] Earle A Chiles Res Inst, Portland, OR USA