Patient's global assessment of disease activity and patient's assessment of general health for rheumatoid arthritis activity assessment: are they equivalent? by Khan, N, Spencer, H, Abda, E, Alten, R, Pohl, C, Ancuta, C, Cazzato, M, Géher, P, Gossec, L, Henrohn, D, Hetland, M, Inanc, N, Jacobs, J, Kerzberg, E, Majdan, M, Oyoo, O, Peredo-Wende, R, Selim, Z, Skopouli, F, Sulli, A, Hørslev-Petersen, K, Taylor, P, Sokka, T