1 Pneumology Department, Hospital Universitari Vall d´Hebron, Vall d'Hebron Institut de Recerca (VHIR), Vall d'Hebron Barcelona Hospital Campus, P. Vall d'Hebron 119-129, 08035, Barcelona, Spain.
2 Department of Medicine, Universitat Autònoma de Barcelona, Bellaterra, 08193, Barcelona, Spain.
3 Department of Biology and Biotechnologies, 'Charles Darwin' and Pasteur Institute - Cenci Bolognetti Foundation, Sapienza University of Rome, Rome, Italy.
4 Pneumology Department, Teknon Medical Center, Barcelona, Spain.
5 Liver Unit, Department of Internal Medicine, Hospital Universitari Vall d'Hebron, Vall d'Hebron Institut de Recerca (VHIR), Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain.
6 Department of Clinical Biochemistry, Hospital Universitari Vall d'Hebron, Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain.
7 Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas, (CIBEREHD), Barcelona, Spain.
8 Clinical Biochemistry Research Group/Vall d'Hebron Institut de Recerca (VHIR), Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain.
9 Pneumology Department, Hospital Universitari Vall d´Hebron, Vall d'Hebron Institut de Recerca (VHIR), Vall d'Hebron Barcelona Hospital Campus, P. Vall d'Hebron 119-129, 08035, Barcelona, Spain. marcm@separ.es.
10 Department of Medicine, Universitat Autònoma de Barcelona, Bellaterra, 08193, Barcelona, Spain. marcm@separ.es.
11 Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Barcelona, Spain. marcm@separ.es.