- Correspondence to Dr Eladio Jiménez-Mejías, Departamento de Medicina Preventiva y Salud Pública, Facultad de Medicina, Universidad de Granada, Avda. de Madrid 11, Granada 18012, Spain;
- Received December 13, 2013
- Revised March 15, 2014
- Accepted April 16, 2014
- First published May 9, 2014.
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