- Correspondence to Ana Belén Rivas Paterna, Nursery Department, UICEC, Hospital Clínico San Carlos, Facultad de Enfermería Fisioterapia y Podología, Universidad Complutense de Madrid, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Profesor Martín Lagos SN, Madrid 28040, Spain;
- Received July 23, 2015
- Revised December 28, 2015
- Accepted December 29, 2015
- First published January 27, 2016.
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