M. Aamir, S. Fatima, S. Naz, Z. H. Haroon, S. I. Kirmani, and M. U. Munir, “CORRELATION OF BLOOD LEVETIRACETAM LEVEL WITH CLINICAL SYMPTOMS AFTER VALIDATION BY LIQUID CHROMATOGRAPHY–TANDEM MASS SPECTROMETRY IN EPILEPTIC PATIENTS UNDER THERAPY”, Pak J Pathol, vol. 32, no. 3, pp. 96–100, Sep. 2021.