1. Department of Biomedicine, Biotechnology and Public Health, University of Cadiz, Avenida Ana de Viya 52, 11009 Cádiz, Spain
2. Department of Nursing and Physiotherapy, University of Cadiz, Avenida Ana de Viya 52, 11009 Cádiz, Spain
3. Clinic Management Unit (UGC), Andalusian Health Service, 11510 Puerto Real, Spain
4. Department of Statistics and Operations Research, University of Cadiz, Polígono Río San Pedro, 11510 Puerto Real, Spain