1. Medical Oncology Unit, University Hospital of Parma, Parma, Italy
2. Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts, USA
3. Pathology Unit, University Hospital of Parma, Parma, Italy
4. INSERM UMR981, Gustave Roussy Institute, Villejuif, France
5. Department of Medicine and Surgery, University of Parma, Parma, Italy
6. Oncology Clinic, Polytechnic University of Marche, United Hospitals of Ancona, Ancona, Italy