1. Laboratory of Research in Respiratory Physiotherapy, Department of Physiotherapy, State University of Londrina, Londrina, Brazil
2. Department of Rehabilitation Sciences, KU Leuven, Leuven, Belgium
3. Department of Respiratory Diseases, University Hospitals Leuven, Leuven, Belgium
4. Centre for Research in Environmental Epidemiology (CREAL), ISGlobal, Barcelona, Spain