Naude, Celeste. 2013. “Would an Increase in Vegetable and Fruit Intake Help to Reduce the Burden of Nutrition-Related Disease in South Africa? An Umbrella Review of the Evidence”. South African Journal of Clinical Nutrition 26 (3), 104-14. http://sajcn.redbricklibrary.com/index.php/SAJCN/article/view/719.