Patient-defined flares and disease activity worsening in 222 patients with psoriatic arthritis from 14 countries by Sousa, M, Lubrano, E, Smolen, JS, Gorlier, C, de Wit, M, Coates, LC, Kalyoncu, U, Ruyssen-Witrand, A, Leung, Y-Y, Scrivo, R, Cañete, JD, Palominos, P, Meisalu, S, Balanescu, A, Kiltz, U, Zehra Aydin, S, Gaydukova, I, Dernis, E, Fautrel, B, Orbai, A-M, Gossec, L

Disparities in healthcare in psoriatic arthritis: an analysis of 439 patients from 13 countries by Lucasson, F, Kiltz, U, Kalyoncu, U, Leung, Y-Y, Palominos, P, Cañete, JD, Scrivo, R, Balanescu, A, Dernis, E, Meisalu, S, Ruyssen-Witrand, A, Soubrier, M, Zehra Aydin, S, Eder, L, Gaydukova, I, Lubrano, E, Richette, P, Husni, ME, Coates, LC, de Wit, M, Smolen, JS, Orbai, A-M, Gossec, L