[1] NCI, Ctr Canc Res, Bethesda, MD 20892 USA
[2] Aarhus Univ Hosp, Aarhus, Denmark
[3] Massachusetts Gen Hosp, Ctr Canc, Boston, MA USA
[4] Harvard Med Sch, Boston, MA 02115 USA
[5] Vanderbilt Ingram Canc Ctr, Nashville, TN USA
[6] Univ Penn, Philadelphia, PA 19104 USA
[7] Univ Utah, Salt Lake City, UT USA
[8] Hop Europeen Georges Pompidou, Paris, France
[9] Univ Michigan, Ann Arbor, MI 48109 USA
[10] Univ Pittsburgh, Pittsburgh, PA USA
[11] Cambridge Univ Hosp NHS Fdn Trust, Cambridge, England
[12] Merck & Co Inc, Kenilworth, NJ USA
[13] Univ Texas MD Anderson Canc Ctr, Houston, TX 77030 USA