Cleland, J.G.F., A.R. Lyon, T. McDonagh, and J.J.V. McMurray. “ The Year in Cardiology 2019”. SA Heart Journal 17, no. 1 (April 30, 2020): 30–47. Accessed March 11, 2026. https://www.journals.ac.za/index.php/SAHJ/article/view/4023.