Antiperinuclear factor as a prognostic marker in rheumatoid arthritis

1. Muñoz-Fernández, S.
2. Alvarez-Doforno, R.
3. González-Tarrio, J.M.
4. Balsa, A.
5. Richi, P.
6. Fontán, G.
7. Gijón-Baños, J.
8. Martin-Mola, E.