Henning, E., Terblanche, H., Kleynhans, M., Crafford, D., Wood, P., Grant, C., & du Toit, P. (2014). Comparing Cardio Stress Index between sedentary and active populations. Suid-Afrikaans Tydskrif Vir Natuurwetenskap En Tegnologie / <i>South African Journal of Science and Technology</I&gt;, 33(1), 1 bladsy. https://doi.org/10.4102/satnt.v33i1.1221