[1] Univ Florence, Div Rheumatol, Dept Expt & Clin Med, Azienda Osped Univ Careggi, Florence, Italy
[2] Univ Florence, Div Pneumol, Dept Expt & Clin Med, Azienda Osped Univ Careggi, Florence, Italy
[3] Univ Florence, Div Radiol 2, Dept Expt & Clin Med, Azienda Osped Univ Careggi, Florence, Italy
[4] Azienda Osped Univ Careggi, Div Emergency Urgency Radiol, Dept Serv, Florence, Italy
[5] Med Univ Graz, Inst Physiol, Ludwig Boltzmann Inst Lung Vasc Res, Graz, Austria
[6] Univ Modena & Reggio Emilia, Azienda Osped Univ, Policlin Modena, Rheumatol Unit, Modena, Italy
[7] Luigi Vanvitelli Univ Campania, Dept Med & Surg Sci, Div Internal Med, Naples, Italy
[8] Univ Florence, Dept Med, Florence, Italy