1. INSERM, U1094, Tropical Neuroepidemiology, Limoges, France,
2. University Limoges, UMR_S 1094, Tropical Neuroepidemiology, Institute of Neuroepidemiology and Tropical Neurology, Limoges, France,
3. CHU Limoges, Centre d’Epidémiologie de Biostatistique et de Méthodologie de la Recherche, Limoges, France,
4. Department of Basic Medical Sciences, Neuroscience and Sense Organs, University of Bari Aldo Moro, Bari, Italy,
5. Department of Clinical Research in Neurology, Unit of Neurodegenerative Diseases, University of Bari Aldo Moro at ‘‘Pia Fondazione Cardinale G. Panico’’, Tricase, Italy,
6. School of Medicine, Universidad Espíritu Santo, Guayaquil, Ecuador,
7. CHU Limoges, Service de Neurologie, Centre expert ALS, Limoges, France