the ribosomal cistrons ( rdna ) /genome ratio was measured in five cell lines derived from three chemically induced erythroblastic leukemias ( d-1 , d-2 , and ne26 ) in the long-evans ( le ) rat and compared with values in the normal liver , bone marrow , and fetus .
C0023440
erythroblastic leukemias
C0005953
bone marrow