1. Department of Paediatric Neurosurgery, Alder Hey Children’s NHS Foundation Trust, Liverpool;
2. Department of Neurosurgery, The Walton Centre NHS Foundation Trust, Liverpool;
3. Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool;
4. Liverpool Clinical Trials Centre, University of Liverpool;
5. University Hospitals Bristol and Weston NHS Trust, Bristol;
6. Institute of Systems, Molecular and Integrative Biology, University of Liverpool; and
7. Department of Paediatric Neurology, Alder Hey Children’s NHS Foundation Trust, Liverpool, United Kingdom