(G) Donor-derived MBP in the conus medullaris; exiting myelinated roots of the cauda equina to the left. Scale bars: 2.5 mm in (A) and (B), 200 μm in (C), 40 μm in (D), 50 μm in (E), 60 μm in (F), and 125 μm in (G). Download: Download high-res image (...