Validation of a UPLC-MS/MS Method for Quantifying Intracellular Olaparib Levels in Resistant Ovarian Cancer Cells. - Kmiecik, Szymon W.; Lewis, Jennifer; Schwickert, Jonas; Breitenreicher, Henrik; Sprick, Martin R.; Burhenne, Jürgen (Pharmaceuticals (14248247), 2025)