1. 1Program of Immunology and Immunotherapy, Center for Applied Medical Research (CIMA), Pamplona, Spain.
2. 2Navarra Institute for Health Research (IDISNA), Pamplona, Spain.
3. 3Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain.
4. 4Department of Immunology and Immunotherapy, Clínica Universidad de Navarra, Pamplona, Spain.
5. 5Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom.