[1] NCI, Med Oncol Serv, NIH, Bethesda, MD 20892 USA
[2] NCI, Mol Biol Lab, NIH, Bethesda, MD 20892 USA
[3] NCI, Pathol Lab, NIH, Bethesda, MD 20892 USA
[4] NCI, Biostat & Data Management Sect, Ctr Canc Res, NIH, Bethesda, MD 20892 USA
[5] NCI, Off Res Nursing, NIH, Bethesda, MD 20892 USA
[6] NCI, Lymphoid Malignancies Branch, NIH, Bethesda, MD 20892 USA
[7] NIH, Hematol Sect, Dept Lab Med, Bldg 10, Bethesda, MD 20892 USA
[8] NIH, Dept Lab Med, Bldg 10, Bethesda, MD 20892 USA