- Correspondence to Professor Jim M Wild, Department of Academic Radiology, Floor C, Royal Hallamshire Hospital, Glossop Road, Sheffield S10 2JF, UK;
- Received 22 May 2016
- Revised 11 January 2017
- Accepted 3 February 2017
- Published in print 1 August 2017.
- Published online 13 July 2017.
- Published first 6 March 2017.
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