- Correspondence to Dr Emanuele Valenti, Medical School, Biomedical Ciences Department, Medical Humanities, Universidad Europea de Madrid, Campus Villaviciosa de Odón, Madrid 28001, Spain; ,
- Received November 13, 2011
- Revised August 28, 2013
- Accepted September 25, 2013
- First published October 15, 2013.
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