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Graphical representation of immunoassay’s analytical bias estimated using the liquid chromatography coupled to the tandem mass spectrometry assay (N = 49). A: Bland-Altman plots showing AB together with the corresponding trends and dispersions. B: Estimated PB and corresponding 95% Confidence interval (95%CI). All concentrations are given in nmol/L, except for the cortisol and DHEAS which are given in µmol/L. DHEAS - dehydroepiandrosterone sulphate. OHP - 17-hydroxyprogesterone.
