title: Prolonged inhibition of DNA synthesis associated with the accumulation of methotrexate polyglutamates by cultured human cells.
mesh_terms: D002478:Cells, Cultured; D004247:DNA / Q000096:biosynthesis*; D005347:Fibroblasts / Q000378:metabolism; D006801:Humans; D008727:Methotrexate / Q000378:metabolism*; D011099:Polyglutamic Acid / Q000378:metabolism; D013997:Time Factors
chemical_list: D011099:Polyglutamic Acid; D004247:DNA; D008727:Methotrexate