1. Division of Thoracic Oncology, European Institute of Oncology (IEO), Milan, Italy
2. Epidemiology & Biostatistics Division, European Institute of Oncology, Milan, Italy
3. Division of Pathology & Laboratory Medicine, European Institute of Oncology, Milan, Italy
4. Division of Thoracic Surgery, European Institute of Oncology, Milan, Italy
5. University of Milan School of Medicine, Milan, Italy