1. Faculty of Psychology, University of Barcelona, 08007 Barcelona, Spain
2. Department of Medical Oncology, Hospital Universitario Central de Asturias, ISPA, 33011 Oviedo, Spain
3. Department of Medical Oncology, Hospital General Universitario de Ciudad Real, 13005 Madrid, Spain
4. Department of Medical Oncology, Hospital Universitario de Canarias, 38320 Tenerife, Spain
5. Department of Medical Oncology, Complejo Hospitalario Universitario de Ourense, 32005 Ourense, Spain
6. Department of Medical Oncology, Hospital Universitario Morales Meseguer, 30008 Murcia, Spain
7. Department of Medical Oncology, Consorcio Sanitario del Maresme, 08304 Mataró, Spain
8. Department of Medical Oncology, Hospital General Universitario de Valencia, 46014 Valencia, Spain