1. Respiratory Department, Gregorio Marañón General University Hospital, 28007 Madrid, Spain
2. Faculty of Medicine, Complutense University of Madrid, 28040 Madrid, Spain
3. Gregorio Marañón Biomedical Research Institute, 28007 Madrid, Spain
4. Endocrinology and Nutrition Department, Infanta Leonor University Hospital, 28031 Madrid, Spain
5. Respiratory Department, Infanta Leonor University Hospital, 28031 Madrid, Spain