1. Service of Medical Oncology; Hospital Universitario Miguel Servet; Zaragoza; Spain
2. Service of Medical Oncology; Hospital Universitario La Fe; Valencia; Spain
3. Service of Medical Oncology; Hospital Universitari Vall d'Hebron; Barcelona; Spain
4. Service of Medical Oncology; Hospital Hermanos Laguna; Madrid; Spain
5. Service of Medical Oncology; Hospital Universitario de Canarias; La Laguna; Spain
6. Service of Medical Oncology; Hospital General Universitario de Valencia; Valencia; Spain
7. Service of Medical Oncology; Hospital Universitario de Guadalajara; Guadalajara; Spain
8. Service of Medical Oncology; Hospital Universitario Marqués de Valdecilla; Santander; Spain
9. Service of Medical Oncology; Hospital Clínico Universitario San Carlos; Madrid; Spain
10. Medical Department; Janssen-Cilag; Madrid; Spain