Citation: Ek. Bendriss et al., High-performance liquid chromatography assay for simultaneous determination of dextromethorphan and its main metabolites in urine and in microsomal preparations, J CHROMAT B, 754(1), 2001, pp. 209-215
Citation: Ek. Bendriss et al., Liquid chromatographic method for the simultaneous determination of caffeine and fourteen caffeine metabolites in urine, J CHROMAT B, 746(2), 2000, pp. 331-338