NB, S., A. Grace, S. P, and U. R. “Out Of Pocket (OOP) Health Expenditure and Utilization of Financial Risk Protection Measures Among COVID-19 Affected Individuals in Chennai- A Cross-Sectional Study”. National Journal of Community Medicine, vol. 13, no. 07, July 2022, pp. 453-7, doi:10.55489/njcm.130720222104.