1. Section of Patient Centred Outcomes Research, Leeds Institute of Medical Research at St James’s, Faculty of Medicine and Health, University of Leeds, Leeds, UK
2. Thoracic Surgery Unit, Verona University Hospital, Verona, Italy
3. Division of Cardio-Thoracic Surgery, Brigham and Women’s Hospital, Harvard Medical School, Harvard University, Boston, MA, USA
4. Division of Thoracic Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
5. Department of Thoracic Surgery, University Hospital Leuven, Leuven, Belgium