Mahanta, B., D. Saikia, R. Doley, J. Umbon, and P. Barua. “Factors Affecting Death Due to COVID-19: An Analytical Study from a Tertiary Care Hospital of Assam”. International Journal of Research in Medical Sciences, vol. 11, no. 7, June 2023, pp. 2626-30, doi:10.18203/2320-6012.ijrms20232111.