1. Department of Neurology, The Walton Centre for Neurology and Neurosurgery, Liverpool, England2Alder Hey Children’s NHS Foundation Trust, Liverpool, England
2. Department of Neurology, The Walton Centre for Neurology and Neurosurgery, Liverpool, England
3. Department of Histopathology, Aintree University Hospitals NHS Foundation Trust, Liverpool, England
4. Department of Neurology, Lancashire Teaching Hospitals NHS Foundation Trust, Lancashire, England