1. Specialty Registrar in Neurosurgery, Department of Paediatric Neurosurgery, Leeds General Infirmary, Leeds LS1 3EX
2. Consultant Neurosurgeon, Department of Neurosurgery, King's College NHS Foundation Trust, London and Department of Paediatric Neurosurgery, Alder Hey Children's NHS Foundation Trust, Liverpool
3. Consultant Neurosurgeon, Department of Neurosurgery, King's College NHS Foundation Trust, London
4. Consultant Neurosurgeon, Department of Paediatric Neurosurgery, Alder Hey Children's NHS Foundation Trust, Liverpool