title: An unusual cause of back pain in a child: spinal subdural haematoma secondary to intracranial arachnoid cyst haemorrhage.
authors.affiliation: Department of Radiology, Chelsea and Westminster Hospital NHS Foundation Trust, London SW10 9NH, UK.
authors.forename: Yu Jin
authors.initials: YJ
authors.lastname: Lee
authors.affiliation: Department of Radiology, Frimley Park Hospital, Frimley, Surrey GU16 7UJ, UK.
authors.forename: Robert
authors.initials: R
authors.lastname: Barker