European multicentre study to define disease activity criteria for systemic sclerosis. I. Clinical and epidemiological features of 290 patients from 19 centres von Della Rossa, A, Valentini, G, Bombardieri, S, Bencivelli, W, Silman, A J, D'Angelo, S, Cerinic, M Matucci, Belch, J F, Black, C M, Becvar, R, Bruhlman, P, Cozzi, F, Czirják, L, Drosos, A A, Dziankowska, B, Ferri, C, Gabrielli, A, Giacomelli, R, Hayem, G, Inanc, M, McHugh, N J, Nielsen, H, Scorza, R, Tirri, E, van den Hoogen, F H J, Vlachoyiannopoulos, P G

Volltext