[1] Spedali Civil Brescia, Rheumatol & Clin Immunol, I-25125 Brescia, Italy
[2] Univ Brescia, Brescia, Italy
[3] Osped Riuniti Bergamo, Internal Med, Bergamo, Italy
[4] Osped San Matteo, Div Rheumatol, Pavia, Italy
[5] Univ Pavia, I-27100 Pavia, Italy
[6] Univ Verona, Rheumatol & Internal Med, I-37100 Verona, Italy
[7] Univ Padua, Div Rheumatol, Padua, Italy
[8] Univ Milan, Rheumatol, Milan, Italy
[9] Univ Milan, Dept Internal Med, Milan, Italy
[10] Ist Ortoped Gaetano Pini, Milan, Italy
[11] Univ Paris 05, Paris, France
[12] Hop Cochin, Natl Referral Ctr Necrotizing Vasculitides & Syst, F-75674 Paris, France
[13] Spedali Civil Brescia, Obstetr & Gynecol, I-25125 Brescia, Italy
[14] Univ Pisa, Rheumatol Unit, Pisa, Italy
[15] Spedali Civil Brescia, Neonatal Intens Care Unit, I-25125 Brescia, Italy
[16] Osped San Carlo Borromeo Milano, Dept Med, Clin Immunol Unit, Milan, Italy
[17] Univ Pisa, Obstetr & Gynecol, Pisa, Italy