1. From the Institute of Clinical Medicine-Neurology, University of Eastern Finland, Kuopio, Finland (L.-l.C., J.-w.M., J.J.); Department of Cell Therapy, Fraunhofer Institute for Cell Therapy and Immunology, Leipzig, Germany (F.N.); McGowan Institute for Regenerative Medicine, University of Pittsburgh, PA (F.N.); In Vivo Brain Microscopy Unit, Neuroscience Center, University of Helsinki, Finland (E.P., M.T., L.K.); Charles River DRS Finland, Kuopio (L.T., J.R., T.H.); Department of Translational...