title: A rapid, radiochemical-ligand binding assay for methotrexate.
mesh_terms: D000818:Animals; D001665:Binding Sites; D006168:Guinea Pigs; D007700:Kinetics; D008099:Liver / Q000201:enzymology; D008727:Methotrexate / Q000032:analysis* / Q000097:blood / Q000134:cerebrospinal fluid; D011485:Protein Binding; D011869:Radioligand Assay / Q000379:methods; D013762:Tetrahydrofolate Dehydrogenase / Q000378:metabolism
chemical_list: D013762:Tetrahydrofolate Dehydrogenase; D008727:Methotrexate