Samarghandian, Saeed, et al. “Crocus Sativus L. (saffron) Extract Reduces the Extent of Oxidative Stress and Proinflammatory State in Aged Rat Kidney”. Progress in Nutrition, vol. 18, no. 3, Sept. 2016, pp. 299-10, https://mattioli1885journals.com/index.php/progressinnutrition/article/view/4907.