Results from Phase I Clinical Trial with Intraspinal Injection of Neural Stem Cells in Amyotrophic Lateral Sclerosis: A Long-Term Outcome. - Mazzini L; Gelati M; Profico DC; Sorarù G; Ferrari D; Copetti M; Muzi G; Ricciolini C; Carletti S; Giorgi C; Spera C; Frondizi D; et al. (Stem cells translational medicine, 2019)