Leardini, G., M.T. Mascia, S. Stisi, G. Sandri, and M. Franceschini. “Sanitary Costs of Osteoarthritis”. Reumatismo 53, no. 4 (1): 316-322. Accessed April 12, 2021. https://www.reumatismo.org/index.php/reuma/article/view/reumatismo.2001.316.