Universidad Autónoma de Madrid - Medical Oncology Department, Hospital Universitari Germans Trias i Pujol - Medical Oncology Department, Universidad Autónoma de Madrid - Medical Oncology Department, Hospital Universitario Cruces - Medical Oncology Department, Hospital Universitari Germans Trias i Pujol - Medical Oncology Department, Hospital Universitario de Navarra - Medical Oncology Department, Hospital Universitario de León - Medical Oncology Department, Hospital Universitari Germans Trias i Pujol - Medical Oncology Department, Hospital Universitari Son LLàtzer - Medical Oncology Department, - Medical Oncology Department, Instituto de Investigación Biomédica de A Coruña - Medical Oncology Department, Universidad Autónoma de Madrid - Medical Oncology Department, Hospital Universitario Cruces - Medical Oncology Department, Hospital de la Santa Creu i Sant Pau - Medical Oncology Department, Institut Català d'Oncologia - Medical Oncology Department, Hospital Universitario Fundación Alcorcón - Medical Oncology Department, Hospital General Universitario de Elche - Medical Oncology Department, Centre Hospitalier de la Côte Basque - Medical Oncology Department, Centre Hospitalier de la Côte Basque - Medical Oncology Department, Hospital Universitari Sant Joan de Reus - Medical Oncology Department, HM University Sanchinarro Hospital - Medical Oncology Department, Complejo Asistencial de Zamora - Medical Oncology Department, Hospital Universitario Severo Ochoa - Medical Oncology Department, Hospital Universiario Infanta Leonor - Medical Oncology Department, Hospital Universitario Lucus Augusti (HULA) - Medical Oncology Department, Hospital Universitario de Móstoles - Medical Oncology Department, Althaia, Xarxa Assistencial Universitària de Manresa - Medical Oncology Department, Hospital General de Segovia - Medical Oncology Department, Hospital General Universitario de Alicante - Medical Oncology Department and Hospital Universitario de Salamanca - Medical Oncology Department

affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, Complejo Asistencial de Zamora, Hospital Clinico San Carlos, affiliation not provided to SSRN, Hospital Universitario Fundación Alcorcón - Medical Oncology Department, Hospital Universitario Virgen Macarena, Hospital Clínico de Valladolid, Hospital Regional Universitario de Málaga, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, Hospital General Universitario de Elche, affiliation not provided to SSRN, University of Las Palmas de Gran Canaria - Hospital Universitario Insular de Gran Canaria, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, Althaia, Xarxa Assistencial Universitària de Manresa - Medical Oncology Department, Hospital Clinico San Carlos, affiliation not provided to SSRN, affiliation not provided to SSRN, Universidad Autónoma de Madrid - Medical Oncology Department, affiliation not provided to SSRN and Universidad Autónoma de Madrid - Medical Oncology Department