Blind randomized controlled study of the efficacy of cognitive training in Parkinson's disease

1. París, A.P.
2. Saleta, H.G.
3. de la Cruz Crespo Maraver, M.
4. Silvestre, E.
5. Freixa, M.G.
6. Torrellas, C.P.
7. Pont, S.A.
8. Nadal, M.F.
9. Garcia, S.A.
10. Bartolomé, M.V.P.
11. Fernández, V.L.
12. Bayés, À.R.