Blood-spinal cord barrier leakage is not caused by neurodegeneration in amyotrophic lateral sclerosis Running head title: Blood-spinal cord barrier leakage in ALS

1. Department of Pharmacology and Clinical Pharmacology, University of Auckland, Auckland, New Zealand 2. Department of Anatomy and Medical Imaging, University of Auckland, Auckland, New Zealand 3. Centre for Brain Research, University of Auckland, Auckland, New Zealand 4. LabPlus, Auckland City Hospital, Auckland, New Zealand. 5. Departments of Neurology and Neurobiology, Barrow Neurological Institute, 85013 Phoenix, Arizona, USA.

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