Agrawal, G., R. Agrawal, H. Agrawal, H. Prajapati, K. Yadav, K. Agrawal, and C. G. Agrawal. “Seroprevalence of COVID-19 Antibody Among Patients Visiting a Large Clinic in Uttar Pradesh”. International Journal of Basic & Clinical Pharmacology, vol. 11, no. 1, Dec. 2021, pp. 8-12, doi:10.18203/2319-2003.ijbcp20214884.