Trace elements in ALS patients and their relationships with clinical severity

1. Oggiano, R.
2. Solinas, G.
3. Forte, G.
4. Bocca, B.
5. Farace, C.
6. Pisano, A.
7. Sotgiu, M.A.
8. Clemente, S.
9. Malaguarnera, M.
10. Fois, A.G.
11. Pirina, P.
12. Montella, A.
13. Madeddu, R.