Expanded and independent validation of the Movement Disorder Society-Unified Parkinson's Disease Rating Scale (MDS-UPDRS)

1. Martinez-Martin, P.
2. Rodriguez-Blazquez, C.
3. Alvarez-Sanchez, M.
4. Arakaki, T.
5. Bergareche-Yarza, A.
6. Chade, A.
7. Garretto, N.
8. Gershanik, O.
9. Kurtis, M.M.
10. Martinez-Castrillo, J.C.
11. Mendoza-Rodriguez, A.
12. Moore, H.P.
13. Rodriguez-Violante, M.
14. Singer, C.
15. Tilley, B.C.
16. Huang, J.
17. Stebbins, G.T.
18. Goetz, C.G.