title: Improvement in a radioimmunoassay for digoxin.
mesh_terms: D004076:Digoxigenin / Q000031:analogs & derivatives; D004077:Digoxin / Q000097:blood*; D005230:Fatty Acids, Nonesterified / Q000097:blood*; D006863:Hydrogen-Ion Concentration; D007457:Iodine Radioisotopes; D011863:Radioimmunoassay
chemical_list: D005230:Fatty Acids, Nonesterified; D007457:Iodine Radioisotopes; D004077:Digoxin; D004076:Digoxigenin