Fig. 1. Correlation between the test samples. (A) The percent difference in individual laboratory results (D%) for each test sample. The cells are colored according to the D% values. The laboratory order is based on the average of the D% values, except for Lab E and Lab D, for pattern readability. (B) Correlation of D% values for test samples with similar concentrations for SIR and EVE. Test sample pairs are indicated by a triangle or circle, and the colors indicate the laboratory code.
Abbreviations: CSA, cyclosporine; EVE, everolimus; NA, not available; SIR, sirolimus; TAC, tacrolimus.

Ann Lab Med 2021;41:268~276 https://doi.org/10.3343/alm.2021.41.3.268