[1] Univ Texas, MD Anderson Canc Ctr, Houston, TX 77030 USA
[2] Vanderbilt Univ, Nashville, TN USA
[3] Spectrum Hlth, Grand Rapids, MI USA
[4] Amgen Inc, Thousand Oaks, CA 91320 USA
[5] Amgen Inc, San Francisco, CA USA
[6] Canc Ctr Carolinas, Greenville, SC USA