Bhattacharya, R.; Mondal, M.; Naiya, S. B.; Lyngdoh, L.; Mukherjee, R.; Singh, P. K. The Beneficial Role of N-Acetylcysteine As an Adjunctive Drug in Treatment of COVID-19 Patients in a Tertiary Care Hospital in India: An Observational Study. Int J Res Med Sci 2020, 8, 3518-3522.