an indirect immunofluorescent technic was used to identify cells with terminal deoxynucleotidyl transferase ( tdt ) activity in bone marrow smears from 169 patients without a clinically or morphologically apparent hematologic malignancy : 73 normal individuals , 27 bone marrow transplant recipients , 25 with neuroblastoma or retinoblastoma , 19 with acute lymphoblastic leukemia ( all ) in remission , and 25 with miscellaneous benign conditions .
C0005953
bone marrow
C0023449
acute lymphoblastic leukemia