- Correspondence to Dr Ronald P Danis, Department of Ophthalmology and Visual Sciences, Fundus Photograph Reading Center, University of Wisconsin-Madison, 2870 University Ave, Suite 102, Madison, WI 53705, USA;
- Received February 27, 2015
- Revised August 27, 2015
- Accepted September 3, 2015
- First published November 18, 2015.
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- Data supplement 1 - Online supplement
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