1. Department of Medical Oncology, Hospital Universitario Central de Asturias, 33007 Oviedo, Spain
2. Department of Medical Oncology, Hospital Universitario de Canarias, La Laguna, 38320 Santa Cruz de Tenerife, Spain
3. Department of Medical Oncology, Hospital General Universitario de Ciudad Real, 13005 Ciudad Real, Spain
4. Department of Medical Oncology, Hospital General Universitario de Elche, 03203 Alicante, Spain
5. Department of Clinical Psychology and Psychobiology, University of Barcelona, 08007 Barcelona, Spain
6. Department of Medical Oncology, Hospital General Universitario Morales Meseguer, University of Murcia, IMIB, 30008 Murcia, Spain
7. Department of Medical Oncology, Hospital Universitario Fundación Jiménez-Diaz, 28040 Madrid, Spain