1 Departament of Medicine, Universitat Autònoma de Barcelona, Spain. Electronic address: karinairaida.loor@vallhebron.cat.
2 Department of Radiology, Vall d'Hebron University Hospital, Barcelona, Spain.
3 Departament of Medicine, Universitat Autònoma de Barcelona, Spain; CIBER Enfermedades Respiratorias, Barcelona, Spain.
4 Department of Thoracic Surgery, Vall d'Hebron University Hospital, Barcelona, Spain.
5 Institute of Pathology, Vall d'Hebron University Hospital, Barcelona, Spain.
6 Departament of Medicine, Universitat Autònoma de Barcelona, Spain.
7 Departament of Medicine, Universitat Autònoma de Barcelona, Spain; CIBER Enfermedades Respiratorias, Barcelona, Spain; Department of Respiratory Medicine, Vall d'Hebron Research Institute, Barcelona, Spain.