La Montagna G, Tirri R, Vitiello R, Malesci D, Buono R, Mennillo G, et al. Safety of methotrexate in rheumatoid arthritis: a retrospective cohort study in clinical practice. Reumatismo [Internet]. 2006 Dec. 30 [cited 2024 Nov. 27];58(4):261-7. Available from: https://www.reumatismo.org/reuma/article/view/reumatismo.2006.261