[1] Georgetown Univ, Med Ctr, Lombardi Comprehens Canc Ctr, Dept Oncol, Washington, DC 20007 USA
[2] Georgetown Univ, Med Ctr, Lombardi Comprehens Canc Ctr, Dept Biostat Bioinformat & Biomath, Washington, DC 20007 USA
[3] Georgetown Univ, Med Ctr, Innovat Ctr Biomed Informat, Washington, DC 20007 USA
[4] Univ Washington, Sch Med, Dept Pathol, Seattle, WA 98195 USA
[5] Univ Washington, Sch Med, Dept Biochem, Seattle, WA 98195 USA