[1] Univ Washington, Seattle Canc Care Alliance, Seattle, WA 98195 USA
[2] Erasmus MC, Rotterdam, Netherlands
[3] Harvard Med Sch, Boston, MA 02115 USA
[4] Harvard Pilgrim Hlth Care Inst, Boston, MA USA
[5] Univ Wisconsin, Madison, WI USA
[6] Univ Wisconsin, Carbone Canc Ctr, Madison, WI USA
[7] Univ Calif San Francisco, San Francisco, CA 94143 USA
[8] Univ Calif Davis, Sch Med, Davis, CA USA
[9] Albert Einstein Coll Med, Dept Epidemiol & Populat Hlth, Bronx, NY 10467 USA
[10] Univ Vermont, Burlington, VT USA
[11] Geisel Sch Med, Lebanon, NH USA
[12] Boston Childrens Hosp, Boston, MA USA
[13] Mayo Clin, Dept Lab Med & Pathol, Rochester, MN USA
[14] Mayo Clin, Harvard Sch Publ Hlth, Rochester, MN USA
[15] Georgetown Univ, Med Ctr, Washington, DC 20007 USA
[16] Stanford Sch Med, Stanford, CA 94305 USA
[17] Mem Sloan Kettering Canc Ctr, 1275 York Ave, New York, NY 10021 USA