[1] Univ Pittsburgh, Med Ctr, Dept Pathol, Pittsburgh, PA 15213 USA
[2] Univ Pittsburgh, Med Ctr, Dept Med, Pittsburgh, PA 15213 USA
[3] Univ Pittsburgh, Med Ctr, Dept Obstet & Gynecol, Pittsburgh, PA 15213 USA
[4] Univ Pittsburgh, Canc Inst, Pittsburgh, PA 15213 USA
[5] Univ Texas MD Anderson Canc Ctr, Dept Expt Therapeut, 1400 Pressler St,Unit 1439, Houston, TX 77030 USA
[6] Pacific Northwest Natl Lab, Biol Sci Div, Richland, WA 99354 USA
[7] Oregon Hlth & Sci Univ, Dept Cell Dev & Canc Biol, Portland, OR 97221 USA