“Differences in Urinary Calculi Characteristics Among the Three Main Racial Groups in KwaZulu-Natal, South Africa”. Journal of Renal and Hepatic Disorders 7, no. 1 (May 4, 2023): 38–43. Accessed August 16, 2025. https://jrhd.mre.press/index.php/jrenhep/article/view/142.