Cassim N, Olsen F, Stewart-Isherwood L, da Silva MP, Stevens WS. Assessing the cost and utilization of SMS printers by primary health care facilities: lessons learned from South Africa. J Public Health Afr [Internet]. 2023 Apr. 19 [cited 2023 Jun. 3];14(4). Available from: https://publichealthinafrica.org/jphia/article/view/2253