Maame Fosua Afrifa-Minka, and Anubhav Sony. “OPD Capacity in the 21st Century: A Review of the Factors That Increase Patient Waiting Time”. International Journal of Natural Sciences: Current and Future Research Trends , vol. 21, no. 1, Jan. 2024, pp. 1-16, https://ijnscfrtjournal.isrra.org/Natural_Sciences_Journal/article/view/1209.