Koivu, A., Hederman, L., Grimson, J., & Korpela, M. (2017). Vertical Interventions and Parallel Structures: A Case Study of the HIV and Tuberculosis Health Information Systems in South Africa. Journal of Health Informatics in Developing Countries, 11(2). Retrieved from https://mail.jhidc.org/index.php/jhidc/article/view/163