Ampratwum, K. A., R. Asante, and A. Gyimah Omar-Sasu. “Adverse Events Following Immunization (AEFI) Surveillance System Evaluation, 2016-2020 Kumasi Metropolis”. International Journal of Multidisciplinary Studies and Innovative Research, vol. 11, no. 4, Oct. 2023, pp. 1588-00, doi:10.53075/Ijmsirq/098443535733.