QUEST-RA: quantitative clinical assessment of patients with rheumatoid arthritis seen in standard rheumatology care in 15 countries. 由 Sokka, T, Kautiainen, H, Toloza, S, Mäkinen, H, Verstappen, S, Lund Hetland, M, Naranjo, A, Baecklund, E, Herborn, G, Rau, R, Cazzato, M, Gossec, L, Skakic, V, Gogus, F, Sierakowski, S, Bresnihan, B, Taylor, P, McClinton, C, Pincus, T