Singhala, R. et al. 2020. Quantification of plasma levels of antiviral drug sofosbuvir and its metabolite GS331007 in patients of chronic hepatitis C with chronic kidney disease using UPLC-MS/MS method. Asian Journal of Pharmaceutical Research and Development. 8, 1 (Feb. 2020), 59–66. DOI:https://doi.org/10.22270/ajprd.v8i1.659.