Radioimmunoassay.
D000906:Antibodies / Q000032:analysis; D000917:Antibody Formation; D000937:Antigen-Antibody Reactions; D000941:Antigens / Q000032:analysis; D001666:Binding Sites, Antibody; D007553:Isotope Labeling; D008433:Mathematics; D008722:Methods; D008832:Microchemistry; D011863:Radioimmunoassay
D000906:Antibodies; D000941:Antigens