[1] Mem Sloan Kettering Canc Ctr, New York, NY USA
[2] Univ N Carolina, Chapel Hill, NC 27515 USA
[3] Broad Inst MIT & Harvard, Cambridge, MA USA
[4] Univ So Calif, Los Angeles, CA 90089 USA
[5] British Columbia Canc Agcy, Vancouver, BC, Canada
[6] Washington Univ, St Louis, MO 63130 USA