[1] NCI, Mol Biol Lab, Ctr Canc Res, NIH, Bethesda, MD 20892 USA
[2] Northwestern Univ, Sch Med, Chicago, IL USA
[3] Stanford Univ, Sch Med, Stanford, CA 94305 USA
[4] Med Univ Lodz, Dept Hematol, Lodz, Poland
[5] NCI, Pathol Lab, Ctr Canc Res, NIH, Bethesda, MD 20892 USA
[6] NIH, Dept Lab Med, Ctr Clin, Bethesda, MD 20892 USA
[7] MedImmune LLC, Gaithersburg, MD USA