1. University Hospital of Canarias, San Cristóbal de la Laguna, Santa Cruz de Tenerife, Spain
2. Cátedra de Enfermería, Universidad de la Laguna, San Cristobal de la Laguna, Spain
3. Cieza Este Health Centre, Servicio Murciano de Salud, Murcia, Spain
4. Department of Sociology, Social Work and Public Health, Faculty of Labour Sciences, University of Huelva, Huelva, Spain
5. Safety and Health Postgraduate Program, Universidad Espíritu Santo, Guayaquil, Ecuador
6. Nuestra Señora de Candelaria Nursing University School, University of La Laguna, Santa Cruz de Tenerife, Spain.