Groenewald, P, R Pacella, F Sitas, O F Awotiwon, N Vellios, C J van Rensburg, S Manda, et al. “Estimating the Changing Disease Burden Attributable to Smoking in South Africa for 2000, 2006 and 2012”. South African Medical Journal 112, no. 8B (September 30, 2022): 649–661. Accessed March 6, 2026. https://samajournals.co.za/index.php/samj/article/view/218.