Amyotrophic lateral sclerosis onset after prolonged treatment with a VEGF receptors inhibitor. Issue 1 (March 2015) - Canosa, Antonio; Calvo, Andrea; Barberis, Marco; Brunetti, Maura; Restagno, Gabriella; Cammarosano, Stefania; Ilardi, Antonio; Vigliani, Maria C.; Chiò, Adriano; Moglia, Cristina