Authors: Gian Luca Erre; Luisanna Bosincu; Rossana Faedda; Patrizia Fenu; Antonio Masala; Marcella Sanna; Loredana Taras; Maria Giovanna Longu; Marco Piras; Giovanni Soro; Andrea Ercole Satta; Giuseppe Passiu Journal: Rheumatol Int Date: 2014-04 Impact factor: 2.631