1. Asturias Medical Centre, 33193 Asturias, Spain
2. SALBIS Research Group, Faculty of Health Sciences, Department of Nursing and Physiotherapy, Campus de Ponferrada, Universidad de León, 24401 León, Spain
3. Nursing Research, Innovation and Development Centre of Lisbon (CIDNUR), Nursing School of Lisbon, 1600-190 Lisbon, Portugal
4. Department of Nursing and Physiotherapy, Campus de Ponferrada, Universidad de León, 24401 León, Spain
5. Servicio de Medicina Interna, Hospital Público de Valdeorras, 32300 Ourense, Spain