%0 Letter %T New biological matrix - Full method validation: Exaggeration or necessity? A case study with tariquidar. %A SiemiÄ…tkowska A %A Kagan L %J J Chromatogr B Analyt Technol Biomed Life Sci %V 1228 %N 0 %D 2023 08 1 %M 37524013 %F 3.318 %R 10.1016/j.jchromb.2023.123842