Cell therapy for ischemic stroke: Are differences in preclinical and clinical study design responsible for the translational loss of efficacy? - Cui, Li‐li; Golubczyk, Dominika; Tolppanen, Anna‐Maija; Boltze, Johannes; Jolkkonen, Jukka; Cui, Li-Li; Tolppanen, Anna-Maija (Annals of Neurology, 2019)