1. Thoracic Surgery Università cattolica del Sacro Cuore Rome Italy
2. Fondazione Policlinico Universitario A. Gemelli IRCCS Rome Italy
3. Biostatistics, Regina Elena National Cancer Institute, IRCCS Rome Italy
4. Thoracic surgery, Policlinico‐San Marco Hospital Catania Italy
5. Thoracic Surgery Department, Cochin Hospital, APHP Centre University of Paris Paris France
6. Department of Thoracic Surgery, San Giovanni Battista Hospital University of Turin Turin Italy
7. Thoracic Surgery Unit, Regina Elena National Cancer Institute IRCCS‐IFO Rome Italy