Fibromyalgia in patients with ankylosing spondylitis: Prevalence and utility of the measures of activity, function and radiological damage

1. Almodovar, R.
2. Carmona, L.
3. Zarco, P.
4. Collantes, E.
5. González, C.
6. Mulero, J.
7. Sueiro, J.L.F.
8. Gratacós, J.
9. Torre-Alonso, J.C.
10. Juanola, X.
11. Batlle, E.
12. Ariza, R.
13. Font, P.