Venter, Christine, Johann Jerling, Yvonne van Heerden, and Marlien Pieters. “More Evidence for Capillary Sampling in the Determination of Glycaemic Index”. South African Journal of Clinical Nutrition 18, no. 3 (1). Accessed May 3, 2024. http://sajcn.redbricklibrary.com/index.php/SAJCN/article/view/112.