Viral Hypothesis in Sporadic Amyotrophic Lateral Sclerosis (sALS) - Bettini, Mariela; As, Quilmes Bs; Regueiro, Marcelo; Gargiulo Monachelli, Gisella; Rodriguez, Gabriel; Rey, Raul; Sica, Roberto; Parada, Veronica; Cecilia Freire, Maria; Eilian, Eduardo; Martinez Peralta, Liliana (NEUROLOGY, 2011)