title: Direct determination of free thyroxin in undiluted serum by equilibrium dialysis/radioimmunoassay.
authors.forename: R
authors.initials: R
authors.lastname: Ekins
mesh_terms: D003956:Dialysis / Q000379:methods*; D006801:Humans; D011863:Radioimmunoassay / Q000379:methods*; D013974:Thyroxine / Q000097:blood*
chemical_list: D013974:Thyroxine