1. Department of Nursing Science, Physiotherapy and Medicine, Faculty of Health Sciences, University of Almeria, Spain
2. Universidad Autónoma de Chile, Facultad de Ciencias de la Salud, Temuco, Chile
3. Surgical Emergency Unit, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
4. Specialist Surgery Inpatient Unit, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
5. Adult, Child and Midwifery Department, School of Health and Education, Middlesex University, London, UK
6. Department of Nursing Science, Physiotherapy and Medicine, University of Almeria, Spain
7. Research Unit INSIDE, Institute for Health and Behaviour, University of Luxembourg, Luxembourg
8. Faculty of Health Sciences, Universidad Autónoma de Chile, Temuco, Chile