[1] Sanquin Res, Dept Hematopoiesis, Amsterdam, Netherlands
[2] NCI, Expt Immunol Lab, Canc & Inflammat Program, Frederick, MD 21701 USA
[3] Univ Amsterdam, Acad Med Ctr, Ctr Expt Mol Med, Lab Expt Oncol & Radiobiol LEXOR, NL-1105 AZ Amsterdam, Netherlands