- Correspondence to Professor Simon Mead, NHS National Prion Clinic, National Hospital for Neurology and Neurosurgery, University College London Hospitals NHS Foundation Trust, Queen Square, London WC1N 3BG, UK;
- Accepted 21 December 2016
- Published in print 1 April 2017.
- Published online 18 March 2017.
- Published first 2 February 2017.
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