Shan Sasidharan and J. Hareendran Nair, “The Role of In-vitro Cytotoxicity Assays to Confirm Non-toxicity Subsequent to the Detoxification Procedure of Mercuric Sulphide and Arsenic Trisulphide, Two Integral Metal Components Used in the Formulation of a Novel Herbo-mineral Antiviral Drug Targeted for COVID-19, ZingiVir-H”, NHMMR-V5, pp. 38–60, Apr. 2022.