1 Department of Internal Medicine and Medical Specialities, Rheumatology, Sapienza University of Rome, Viale de Policlinico 155, 00161, Rome, Italy.
2 Department of Cardiovascular, Respiratory, Nephrology and Geriatric Sciences, Sapienza University of Rome, Rome, Italy.
3 Department of Internal Medicine and Medical Specialities, Rheumatology, Sapienza University of Rome, Viale de Policlinico 155, 00161, Rome, Italy. cristiano.alessandri@uniroma1.it.