[1] TECHNION ISRAEL INST TECHNOL, BIOCHEM UNIT, POB 9649, IL-31096 HAIFA, ISRAEL
[2] TECHNION ISRAEL INST TECHNOL, FAC MED, RAPPAPORT INST RES MED SCI, IL-31096 HAIFA, ISRAEL
[3] WASHINGTON UNIV, SCH MED, EDWARD MALLINCKRODT DEPT PEDIAT, ST LOUIS, MO 63110 USA
[4] WASHINGTON UNIV, SCH MED, EDWARD MALLINCKRODT DEPT PHARMACOL, ST LOUIS, MO 63110 USA
[5] WASHINGTON UNIV, CHILDRENS HOSP, SCH MED, DIV HEMATOL ONCOL, ST LOUIS, MO 63110 USA
[6] MONSANTO INC, DIV LIFE SCI, ST LOUIS, MO 63198 USA