1. Department of Thoracic Surgery, Hôpital Erasme, Hôpital Universitaire de Bruxelles (HUB) , Brussels, Belgium
2. Department of Thoracic Surgery, Universitaire Ziekenhuizen Leuven , Leuven, Belgium
3. Department of Chronic Diseases and Metabolism, Laboratory of Respiratory Diseases and Thoracic Surgery (BREATHE), Katholieke Universiteit Leuven , Leuven, Belgium
4. Department of Thoracic Surgery, IEO, European Institute of Oncology IRCCS , Milan, Italy
5. Department of Oncology and Hemato-Oncology, University of Milan , Milan, Italy