analysis of the bone marrow karyotype in 109 consecutive untreated patients with acute lymphoblastic leukemia ( all ) by the g-banding technique revealed the presence of a translocation between specific sites on the long arms of chromosomes 4 and 11 , [ t ( 4 ; 11 ) ( q21 ; q23 ) ] in 3 adults and 2 children .
C0005953
bone marrow
C0023449
acute lymphoblastic leukemia