1. Medical Oncology Department, Hospital Universitario La Paz-IdiPAZ, Madrid, Spain.
2. Medical Oncology Department, Institut Català d’Oncologia Girona(ICO), Girona Biomedical Research Institute (IDIBGI). Department of Medical Sciences, Medical School University of Girona (UdG), Girona, Spain.
3. Medical Oncology Department, University Hospital of Valencia, INCLIVA Biomedical Research Institute, CIBERONC, Valencia, Spain.
4. Medical Oncology Department, Reina Sofia University Hospital of Cordoba, Cordoba, Spain.
5. Medical Oncology Department, Clínica Universidad de Navarra, Madrid, Spain.