Puram, S. R., R. Batheja, and G. Nithya. “HIGHLY SENSITIVE AND RAPID EVALUATION OF PYRIDOSTIGMINE IMPURITY B IN HUMAN PLASMA BY LIQUID CHROMATOGRAPHY COUPLED WITH TANDEM MASS SPECTROMETER AFTER ADMINISTRATION OF PYRIDOSTIGMINE TO HEALTHY VOLUNTEERS IN A PHARMACOKINETIC STUDY”. Asian Journal of Pharmaceutical and Clinical Research, vol. 11, no. 6, June 2018, pp. 353-7, doi:10.22159/ajpcr.2018.v11i6.25038.