title: Immunoassay of leucovorin: use of 125I-labeled protein A to detect immunological binding.
mesh_terms: D000818:Animals; D000918:Antibody Specificity; D001666:Binding Sites, Antibody / Q000032:analysis; D007118:Immunoassay; D007457:Iodine Radioisotopes; D002955:Leucovorin / Q000032:analysis* / Q000097:blood / Q000276:immunology; D011485:Protein Binding; D011817:Rabbits
chemical_list: D007457:Iodine Radioisotopes; D002955:Leucovorin