Oriji, P. C., D. O. Allagoa, L. Obagah, E. S. E. Tekenah, O. S. Ohaeri, and G. Atemie. “Perception about COVID-19 Vaccine Among Patients at the Federal Medical Centre, Yenagoa, South-South Nigeria”. International Journal of Research in Medical Sciences, vol. 9, no. 5, Apr. 2021, pp. 1281-7, doi:10.18203/2320-6012.ijrms20211865.