Iñaki Eguren-Santamaria1, Miguel F Sanmamed2, Ignacio Gil-Bazo3. 1. Department of Oncology, Clínica Universidad de Navarra, Pamplona, Spain; Program of Immunology and Immunotherapy, Center for Applied Medical Research, University of Navarra, Pamplona, Spain. 2. Department of Oncology, Clínica Universidad de Navarra, Pamplona, Spain; Program of Immunology and Immunotherapy, Center for Applied Medical Research, University of Navarra, Pamplona, Spain; IdiSNA, Navarra Institute for Health Research, Pamplona, Spain; Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain. 3. Department of Oncology, Clínica Universidad de Navarra, Pamplona, Spain; IdiSNA, Navarra Institute for Health Research, Pamplona, Spain; Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain; Program of Solid Tumors, Center for Applied Medical Research, University of Navarra, Pamplona, Spain. Electronic address: igbazo@unav.es.