Serum levels of beta-carotene, alpha-carotene, and vitamin A in patients with amyotrophic lateral sclerosis

1. Molina, J.A.
2. De Bustos, F.
3. Jiménez-Jiménez, F.J.
4. Esteban, J.
5. Guerrero-Sola, A.
6. Zurdo, M.
7. Ortí-Pareja, M.
8. Gasalla, T.
9. Gómez-Escalonilla, C.
10. Ramirez-Ramos, C.
11. Guillamón, F.
12. Arenas, J.