1. Cancer Research Program, IMIM (Hospital del Mar Research Institute), Barcelona, Spain;
2. Medical Oncology Department, Hospital del Mar, Barcelona, Spain;
3. Pathology Department, Hospital del Mar, Barcelona, Spain;
4. Autonomous University of Barcelona, Spain;
5. Pathology Department, IIS-Fundación Jiménez Díaz, Madrid, Spain;
6. Oncology and Hematology Department, Hospital Clinico Universitario, Valencia, Spain;
7. Valencia Central University, Spain;
8. Universitat Pompeu Fabra, Barcelona, Spain