- Correspondence to Dr Dean Eliott, Department of Ophthalmology, Massachusetts Eye and Ear Infirmary, Harvard Medical School, 243 Charles Street, Boston, MA 02114, USA;
- Received 7 July 2012
- Revised 1 November 2012
- Accepted 26 November 2012
- Published in print 1 January 2013.
- Published online 11 January 2013.
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