1 Oncology Department, Hospital Clínico Universitario de Valladolid, Valladolid, Spain.
2 Clinical Oncology, Centro de Educación Médica e Investigaciones Clínicas (CEMIC), Buenos Aires, Argentina.
3 Medical Oncology Department, Hospital Clinic of Barcelona, Barcelona, Spain.
4 Medical Oncology Department, Hospital Clinic of Barcelona, Barcelona, Spain; Laboratory of Translational Genomics and Targeted therapies in Solid Tumors, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain. Electronic address: lmezquita@clinic.cat.