D. T. Loots, M. Pieters, S. Islam, and L. Botes, “Antidiabetic effects of Aloe ferox and Aloe greatheadii var. davyana leaf gel extracts in a low-dose streptozotocin diabetes rat model”, S. Afr. J. Sci., vol. 107, no. 7/8, p. 6 pages, Jul. 2011.