1. Faculty of Medicine and Nursing University of the Basque Country UPV/EHU San Sebastián Spain
2. Faculty of Psychology University of the Basque Country UPV/EHU San Sebastián Spain
3. Department of Epidemiology and Child Development, Biodonostia, Health Research Institute San Sebastián Spain
4. Donostia University Hospital (Osakidetza), Area of Knowledge and Research in Nursing Care San Sebastián Spain
5. Faculty of Science and Technology University of the Basque Country UPV/EHU Leioa Spain