Bell, T K An evaluation of absorbent granule kits for determining serum thyroxine concentration and free thyroxine index in the diagnosis of thyroid function. [electronic resource] - Journal of clinical pathology May 1974 - 372-6 p. digital Publication Type: Journal Article ISSN: 0021-9746 Standard No.: 10.1136/jcp.27.5.372 doi Subjects--Topical Terms: AbsorptionAdolescentAdultBlood ProteinsFemaleHumansHyperthyroidism--bloodHypothyroidism--bloodMethodsMiddle AgedPregnancyProtein BindingThyroid Diseases--bloodThyroid Function TestsThyroxine--bloodTriiodothyronine--metabolism