1 Dept of Respiratory Medicine, Competences Centre for Rare Pulmonary Diseases, Pontchaillou Hospital, Rennes 1 University, Rennes, France stephane.jouneau@chu-rennes.fr.
2 IRSET UMR1085, Rennes 1 University, Rennes, France.
3 Dept of Radiology, CHU Rennes, LTSI, INSERM U1099, Univ Rennes, Rennes, France.
4 INSERM, INRA, Univ Rennes, Nutrition Metabolisms and Cancer, NuMeCan, Nutrition unit, CHU Rennes, Rennes, France.