Vergun, Olena, Jan Brindza, and Djamal Rakhmetov. “Total Antioxidant Activity Of Plants Of Symphytum L. Species”. Agrobiodiversity for Improving Nutrition, Health and Life Quality, no. 1 (November 24, 2017). Accessed May 1, 2024. https://agrobiodiversity.uniag.sk/scientificpapers/article/view/126.