R. Talotta, A. Berzi, F. Atzeni, D. Dell’Acqua, P. Sarzi Puttini, and D. Trabattoni, “Evaluation of Th9 lymphocytes in peripheral blood of rheumatoid arthritis patients and correlation with anti-tumor necrosis factor therapy: results from an in vitro pivotal study”, Reumatismo, vol. 68, no. 2, pp. 83–89, Sep. 2016.