Visna/maedi virus serology in sheep: Survey, risk factors and implementation of a successful control programme in Aragón (Spain)

1. Pérez, M.
2. Biescas, E.
3. de Andrés, X.
4. Leginagoikoa, I.
5. Salazar, E.
6. Berriatua, E.
7. Reina, R.
8. Bolea, R.
9. de Andrés, D.
10. Juste, R.A.
11. Cancer, J.
12. Gracia, J.
13. Amorena, B.
14. Badiola, J.J.
15. Luján, L.