- 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 online 30 May 2017.
If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.