Global citimpact: 9.77 Researcher at Hospital Clínic de Barcelona, Thorax Clinic Institute (ICT), Pulmonary Medicine Department, Respiratory Diagnostic Center, 170 Villarroel, 08036 Barcelona, Catalonia, ; Institut d'Investigacions Biomèdiques August Pi i Sunyner (IDIBAPS), Universitat de Barcelona, Barcelona, Catalonia, ; CIBER en Enfermedades Respiratorias (CIBERES), Bunyola, Mallorca, . Electronic address: .