1 Laboratory of Epidemiology and Experimental Pharmacology, Institute for Biomedical Research (BIOMED), School of Medical Sciences, PontificalCatholic University of Argentina (UCA), Buenos Aires, Argentina;
2 The National Scientific and Technical Research Council (CONICET), Buenos Aires, Argentina;
3 Department of Neurology, Center Hospitalier de la Cote Basque, Bayonne, France;
4 Institut des Maladies Neuroegeneratives, Universite de Bordeaux, Bordeaux, France;
5 CNRS, Institut des Maladies Neurodegeneratives, Bordeaux, France;
6 Departments of Clinical Pharmacology and Neurosciences, University Hospital and University of Toulouse 3, Toulouse, France;
7 French Reference Center for MSA, Toulouse University Hospital, Toulouse, France;
8 French Reference Center for MSA, Bordeaux University Hospital, Bordeaux, France