1. University of Sfax—Department of Thoracic and Cardiovascular Surgery, Habib Bourguiba University Hospital, Sfax, Tunisia
2. Department of General and Thoracic Surgery, Rouen University Hospital, Normandy, France
3. Department of Epidemiology and Public Health, Rouen University Hospital, Normandy, France
4. INSERM U1096, Rouen University Hospital, Normandy, France