1 Movement Disorder Unit Department of Psychiatry and Neurology CHU de Grenoble, Joseph Fourier University, and INSERM, Unit 836, Grenoble Institut des Neurosciences Grenoble France.
2 Neurology Department Hospital de Sant Joan Despí Moisès Broggi Barcelona Spain.
3 Radiology Department Hospital de Sant Joan Despí Moisès Broggi Barcelona Spain.