1. Faculty of Health Sciences, University of Castilla-La Mancha, 45660 Talavera de la Reina, Spain
2. Faculty of Nursing and Physiotherapy, University of Salamanca, 37007 Salamanca, Spain
3. University Hospital of Salamanca, 37007 Salamanca, Spain
4. Faculty of Health Sciences, University of Castilla-La Mancha, 45004 Toledo, Spain
5. Department of Nursing, Instituto Maimónides de Investigación Biomédica, 14002 Córboda, Spain