Tabatabaei-Malazy, Ozra, et al. “Influence of Ascorbic Acid Supplementation on Type 2 Diabetes Mellitus in Observational and Randomized Controlled Trials; A Systematic Review With Meta-Analysis”. Journal of Pharmacy & Pharmaceutical Sciences, vol. 17, no. 4, Jan. 2015, pp. 554-82, doi:10.18433/J3ZG6R.