- Correspondence to Dr Alastair K Denniston, Academic Unit of Ophthalmology, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, West Midlands B15 2TT, UK;
- Received 19 November 2016
- Revised 31 January 2017
- Accepted 28 February 2017
- Published in print 1 June 2017.
- Published online 30 May 2017.
- Published first 28 April 2017.
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