1. Oncology Department, Hospital Universitario La Paz, Cátedra UAM-AMGEN, CIBERONC, Madrid, Spain
2. Oncology Department, Centro Integral Oncológico Clara Campal, Madrid, Spain
3. Oncology Department, ESI/OSI Donostialdea, Donostialdea, Spain
4. Oncology Department, Hospital Universitario Dr. Peset, Valencia, Spain
5. Oncology Department, Hospital Universitario Insular de Gran Canarias, Las Palmas, Spain
6. Oncohematogeriatrics Unit, Institut Català d'Oncologia, IDIBELL Hospitalet, Barcelona, Spain
7. Oncology Department, Hospital Universitario de Fuenlabrada, Madrid, Spain
8. Oncology Department, Hospital Lluis Alcanyis de Xátiva, Valencia, Spain
9. Oncology Department, Hospital Virgen de la Luz, Cuenca, Spain
10. Biostatistics Department, Hospital La Paz, Universidad Autónoma de Madrid, Madrid, Spain