1. Department of Basic Psychological Processes and their Development, University of the Basque Country UPV/EHU, San Sebastian, Spain
2. Department of Nursing II, Faculty of Medicine and Nursing, University of the Basque Country UPV/EHU, San Sebastian, Spain
3. Oncologic Center (Onkologikoa), San Sebastian, Spain
4. Biodonostia Institute, San Sebastian, Spain