Stefanantoni, K., I. Sciarra, M. Vasile, R. Badagliacca, R. Poscia, M. Pendolino, C. Alessandri, C.D. Vizza, G. Valesini, and V. Riccieri. 2015. “Elevated Serum Levels of Macrophage Migration Inhibitory Factor and Stem Cell Growth Factor β in Patients With Idiopathic and Systemic Sclerosis Associated Pulmonary Arterial Hypertension”. Reumatismo 66 (4):270-76. https://doi.org/10.4081/reumatismo.2014.774.