• 1 January 1977
    • journal article
    • research article
    • Vol. 50  (4) , 709-712
Abstract
Discrete aggregates of hematopoietic cells were observed in the bone marrows of patients with aplastic anemia or acute leukemia 14 days after marrow transplantation. The great majority of such colonies were of a single cell type, and less than 3% contained 2 or more cell types. Erythroid, myeloid and undifferentiated hematopoietic colonies were approximately equal in frequency.