title: Estimating imprecision of radioassays and related procedures: some considerations.
authors.forename: W A
authors.initials: WA
authors.lastname: Sadler
mesh_terms: D006801:Humans; D015588:Observer Variation; D011237:Predictive Value of Tests; D011863:Radioimmunoassay; D015203:Reproducibility of Results; D013974:Thyroxine / Q000097:blood
chemical_list: D013974:Thyroxine