1 Respiratory Physiopathology Unit, Hospital Pulido Valente, Lisboa, Portugal; Pulmonology Department, Centro Hospitalar Universitário Lisboa Norte, Lisboa, Portugal; Faculty of Medicine, University of Lisbon, Lisboa, Portugal; Pulmonology Department, Hospital Cuf Sintra, Sintra, Portugal; Board of Sociedade Portuguesa de Pneumologia, Lisboa, Portugal.
2 Hospital da Luz - Arrábida, Vila Nova de Gaia, Portugal; Laboratory of Respiratory Function, Hospital da Luz - Arrábida, Vila Nova de Gaia, Portugal; Respiratory Physiopathology and COPD Commission, Sociedade Portuguesa de Pneumologia, Lisboa, Portugal.
3 Respiratory Physiopathology and COPD Commission, Sociedade Portuguesa de Pneumologia, Lisboa, Portugal; Pulmonology Department, Centro Hospitalar e Universitário de Santo António, Porto, Portugal.
4 Board of Sociedade Portuguesa de Pneumologia, Lisboa, Portugal; Sleep and NIV Unit, Pulmonology Department, Centro Hospitalar Universitário Lisboa Norte, Lisboa, Portugal; Faculty of Medicine, University of Lisbon, ISAMB, Lisboa, Portugal.
5 Board of Sociedade Portuguesa de Pneumologia, Lisboa, Portugal; Pulmonology Department, Centro Hospitalar Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal.
6 Board of Sociedade Portuguesa de Pneumologia, Lisboa, Portugal; Pulmonology Department, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal; Faculty of Medicine, University of Coimbra, Coimbra, Portugal.
7 Board of Sociedade Portuguesa de Pneumologia, Lisboa, Portugal; Pulmonology Department, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal.
8 Board of Sociedade Portuguesa de Pneumologia, Lisboa, Portugal; Pulmonology Department, ULS Guarda, Guarda, Portugal; Faculty of Health Sciences, University of Beira Interior, Covilhã, Portugal.
9 Sociedade Portuguesa de Pneumologia, Lisboa, Portugal.
10 Board of Sociedade Portuguesa de Pneumologia, Lisboa, Portugal; Pulmonology Department, Centro Hospitalar Universitário São João, Porto, Portugal; Faculty of Medicine, University of Porto, Porto, Portugal; Institute for Research and Innovation in Health (i3S), University of Porto, Porto, Portugal. Electronic address: [email protected].