1. Faculty of Psychology, University of Barcelona, 08007 Barcelona, Spain
2. Department of Medical Oncology, Hospital Universitario Central de Asturias, Instituto de Investigación del Principado de Asturias, ISPA, 33011 Oviedo, Spain
3. Department of Medical Oncology, Hospital Universitario de Canarias, 38320 Tenerife, Spain
4. Department of Medical Oncology, Hospital General Universitario de Ciudad Real, 13005 Madrid, Spain
5. Department of Medical Oncology, Complejo Hospitalario Universitario de Ourense, 32005 Ourense, Spain
6. Department of Medical Oncology, Hospital Infanta Leonor, 28031 Madrid, Spain
7. Department of Medical Oncology, Consorci Hospital General Universitario de Valencia, 46014 Valencia, Spain
8. Department of Medical Oncology, Hospital Clínico San Carlos, 28040 Madrid, Spain
9. Department of Medical Oncology, Hospital General Virgen de la Luz, 16002 Cuenca, Spain