title: On histochemical dihydrofolate reductase activity in leukemic leukocytes in vitro.
mesh_terms: D001853:Bone Marrow / Q000201:enzymology*; D001854:Bone Marrow Cells; D006801:Humans; D007951:Leukemia, Myeloid / Q000201:enzymology*; D007962:Leukocytes / Q000201:enzymology*; D013762:Tetrahydrofolate Dehydrogenase / Q000032:analysis*
chemical_list: D013762:Tetrahydrofolate Dehydrogenase