- Correspondence to Paulo E Stanga, Department of Ophthalmology and Retinal Regeneration, University of Manchester, Manchester Royal Eye Hospital, Oxford Road, Manchester M139WH, UK;
- Received June 23, 2012
- Revised September 20, 2012
- Accepted October 18, 2012
- First published November 24, 2012.
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.