1. Department of Internal Medicine, University Hospital Lyon Croix-Rousse, Claude Bernard University Lyon 1, 103 Grande Rue de la Croix-Rousse, 69004 Lyon, France
2. Short Stay Geriatric Unit, Lyon Sud University Hospital, University Claude Bernard University Lyon 1, 165 Chemin du Grand Revoyet, 69310 Pierre-Bénite, France
3. National Reference Center for Rare Pulmonary Diseases, Louis Pradel University Hospital, University Claude Bernard University Lyon 1, 59 Boulevard Pinel, 69500 Bron, France
4. Department of Internal Medicine, Lyon Sud University Hospital, University Claude Bernard University Lyon 1, 165 Chemin du Grand Revoyet, 69310 Pierre-Bénite, France
5. Department of Internal Medicine, Edouard Herriot University Hospital, University Claude Bernard University Lyon 1, 5 Place d'Arsonval, 69003 Lyon, France
6. Faculty of Medical Sciences, Newcastle University, Framlington Place, Newcastle upon Tyne NE2 4HH, UK
7. Department of Internal Medicine, Montélimar Hospital, Quartier Beausseret, Route de Sauzet, 26200 Montélimar, France