[Evaluation of 3 different methods for determining triiodothyronine (T-3) and thyroxine (T-4)].

: The authors compare three methodologies based on the immunology (RIA, FPIA, LIA) in the determination of two important parameters of the so-called thyroid outline: triiodothyronine (T-3) and thyroxine (T-4). The correlations between the analytic systems examined are presented and discussed.