1. Group of Precision Medicine in Chronic Diseases, and
2. Centro de Investigación Biomédica en Red de Enfermedades Respiratorias, Madrid, Spain;
3. Group of Translational Research in Respiratory Medicine, Respiratory Department, Hospital Arnau de Vilanova–Santa Maria, Biomedical Research Institute of Lleida, Lleida, Spain;
4. Pneumology Department, University Hospital of Guadalajara, Guadalajara, Spain;
5. San Pedro de Alcántara Hospital, Instituto Universitario de Investigación Biosanitaria de Extremadura, Cáceres, Spain; and
6. Respiratory and Sleep Department, Parc Taulí University Hospital, Parc Taulí Research and Innovation Institute, Autonomous University of Barcelona, Sabadell, Spain