- Correspondence to Dr Maria P Bambo, Ophthalmology Department, Miguel Servet University Hospital, C/Padre Arrupe, Consultas Externas de Oftalmologia, Zaragoza 50009, Spain;
- Received July 3, 2013
- Revised August 29, 2013
- Accepted September 6, 2013
- First published September 30, 2013.
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