K. Lange, F. B. Bisiwe, J. F. Kloppers, and W. J. Janse van Rensburg, “Prevalence of lupus nephritis and the use of serology in a central South African chronic kidney disease patient cohort”, S Afr Med J, vol. 113, no. 4, Apr. 2023, doi: 10.7196/SAMJ.2023.v113i4.198.