Anti-Sa sera from patients with rheumatoid arthritis contain at least 2 different subpopulations of anti-Sa antibodies

1. Escalona, M.
2. López-Longo, F.J.
3. González, C.M.
4. Monteagudo, I.
5. Rodríguez-Mahou, M.
6. Grau, R.
7. Carreño, L.