1. Worldometers. COVID-19 Coronavirus Pandemic. (2022). Accessed: May 19, 2022: https://www.worldometers.info/coronavirus/countries-where-coronavirus-has-spread/.
2. Implications of the second wave of COVID-19 in India;Asrani P;Lancet Respir Med,2021
3. BBC. Covid-19. Has India's deadly second wave peaked?. (2021). Accessed: February 11, 2022: https://www.bbc.com/news/world-asia-india-57225922.
4. Ministry of Health & Family Welfare, Government of India. Clinical Guidance for Management of Adult Covid-19 Patients. (2021). Accessed. February 16, 2022: http://www.mohfw.gov.in/pdf/UpdatedDetailedClinicalManagementProtocolforCOVID19adultsdated24052021.pdf.
5. Features, Evaluation, and Treatment of Coronavirus (COVID-19);Cascella M,2022