benedetti, S., S. Pagliari, F. Benvenuti, D. Marini, T. Galli, F. Oliva, P. Lazzari, and F. Canestrari. 2007. “Antioxidative Effects of Sulphurous Water from Macerata Feltria Thermal Resort in Patients With Osteoarthritis”. Progress in Nutrition 9 (1): 46-52. https://mattioli1885journals.com/index.php/progressinnutrition/article/view/4561.