Influence of cognitive impairment on the freezing of gait in non demented people with Parkinson’s disease

1. Cancela, J.M.
2. Nascimento, C.M.
3. Varela, S.
4. Seijo-Martínez, M.
5. Lorenzo-López, L.
6. Millán-Calenti, J.C.
7. Domínguez-Vivero, C.
8. Ayán, C.