- Correspondence to Dr Alejandro Tello, Department of Ophthalmology, Centro Oftalmológico Virgilio Galvis, Centro Médico Ardila Lulle, Piso 3, Módulo 7, Floridablanca, Santander, Colombia;
- Received December 15, 2012
- Accepted February 16, 2013
- First published March 6, 2013.
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