1. Department of Preventive Medicine University of Santiago de Compostela Santiago de Compostela Spain
2. Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBER‐ESP) Carlos III Health Research Institute Madrid Spain
3. Department of Respiratory Medicine University Hospital of Santiago de Compostela (CHUS) Santiago de Compostela Spain
4. Department of Medicine University of Santiago de Compostela Santiago de Compostela Spain
5. Spanish Biomedical Research Networking Centre (CIBER‐ES) Carlos III Health Research Institute Madrid Spain
6. Health Research Institute of Santiago de Compostela (IDIS) Santiago de Compostela Spain