An isotope dilution-liquid-chromatography-tandem mass spectrometry-based candidate reference measurement procedure for the quantification of mycophenolic acid in human serum and plasma. - Schierscher T; Salzmann L; Singh N; Schäfer C; Sungauer L; Bauland F; Geistanger A; Risch L; Geletneky C; Seger C; Taibon J (Clinical chemistry and laboratory medicine, 2025)