OgbonnayaE. Effect of Livingstone Potato (Plectranthus esculentus N.E.Br) on Hepatic Glucose-6-Phosphophate Dehydrogenase Activity of Streptozotocin Induced Diabetic Rats. JOP. Journal of the Pancreas, v. 15, n. 4, p. 360-364, 28 jul. 2014.