Validity of the Ankylosing Spondylitis Disease Activity Score (ASDAS) in patients with early spondyloarthritis from the Esperanza programme

1. Fernández-Espartero, C.
2. De Miguel, E.
3. Loza, E.
4. Tomero, E.
5. Gobbo, M.
6. Descalzo, M.A.
7. Collantes-Estévez, E.
8. Mulero, J.
9. Muñoz-Fernández, S.
10. Zarco, P.
11. Carmona, L.