1.
Marcucci E, Bartoloni E, Alunno A, Leone M, Cafaro G, Luccioli F, Valentini V, Valentini E, La Paglia G, Bonifacio A, Gerli R. Extra-articular rheumatoid arthritis. Reumatismo [Internet]. 20Dec.2018 [cited 17Jan.2019];70(4):212-24. Available from: https://reumatismo.org/index.php/reuma/article/view/1106