1 Center for Health Technology and Services Research (CINTESIS), Faculty of Medicine, University of Porto (FMUP), Porto, Portugal; Department of Community Medicine, Information and Health Decision Sciences (MEDCIDS), University of Porto Faculty of Medicine, Porto, Portugal. Electronic address: cjacome@med.up.pt.
2 Lab3R - Respiratory Research and Rehabilitation Laboratory, School of Health Sciences, University of Aveiro (ESSUA), Aveiro, Portugal; iBiMED - Institute of Biomedicine, Department of Medical Sciences, University of Aveiro, Aveiro, Portugal.
3 Lab3R - Respiratory Research and Rehabilitation Laboratory, School of Health Sciences, University of Aveiro (ESSUA), Aveiro, Portugal; School of Rehabilitation Science, McMaster University, Hamilton, ON, Canada; West Park Healthcare Centre, Toronto, ON, Canada.
4 Pulmonology Department, Unidade Local de Saúde da Guarda E.P.E. - Hospital Sousa Martins, Portugal; Faculty of Health Sciences, University of Beira Interior, Covilhã, Portugal.
5 Pulmonology Department, Centro Hospitalar Vila Nova de Gaia/Espinho, Vila Nova de Gaia, Portugal.