1. Respiratory Medicine Department, Hospital Center, 194 Avenue Rubillard, CEDEX 9, 72037 Le Mans, France
2. Respiratory Medicine Department, Hospital Center, 85925 La Roche-sur-Yon, France
3. Respiratory Medicine Department, Thorax Institute, University Hospital Center, University of Nantes, 44093 Nantes, France
4. Respiratory Medicine Department, Hospital Center, 49300 Cholet, France
5. Oncology Department, Western Cancer Institute Paul Papin, 49105 Angers, France
6. Oncology Department, Clinique Victor Hugo, 72000 Le Mans, France
7. Regional Cancer Network ONCOPL, 44093 Nantes, France
8. Biostatistics Department, National Institute of Health and Medical Research, University of Angers, 49100 Angers, France
9. Respiratory Medicine Department, University Hospital Center, 49100 Angers, France