title: A source of error in digoxin radioimmunoassay.
mesh_terms: D004074:Digitoxin / Q000097:blood*; D006801:Humans; D007456:Iodine Isotopes; D008722:Methods; D011863:Radioimmunoassay; D014316:Tritium
chemical_list: D007456:Iodine Isotopes; D014316:Tritium; D004074:Digitoxin