1. National Centre for Healthcare Research and Pharmacoepidemiology, Milan, Italy
2. Laboratory of Healthcare Research & Pharmacoepidemiology, Department of Statistics and Quantitative Methods, University of Milano-Bicocca, Milan, Italy
3. MOX, Department of Mathematics, Politecnico di Milano, Milan, Italy
4. CADS—Center for Analysis Decisions and Society, Human Technopole, Milan, Italy
5. Thoracic Surgery Unit, Fondazione IRCCS Istituto Nazionale Dei Tumori, Milan, Italy
6. Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
7. Department of Oncology, ASST Bergamo Ovest, Bergamo, Italy
8. Epidemiologic Observatory, Lombardy Regional Health Service, Milan, Italy