title: Erythroid colony formation in vitro in bone marrow cells of polycythemia vera.
mesh_terms: D000368:Aged; D001853:Bone Marrow / Q000473:pathology*; D002478:Cells, Cultured; D003114:Colony-Forming Units Assay; D006801:Humans; D008297:Male; D008875:Middle Aged; D011087:Polycythemia Vera / Q000473:pathology*