title: Considerations about the response format of the airways questionnaire 20.
authors.forename: Marina
authors.initials: M
authors.lastname: Blanco-Aparicio
authors.forename: Hector
authors.initials: H
authors.lastname: Verea-Hernando
authors.forename: Isabel
authors.initials: I
authors.lastname: Vázquez
mesh_terms: D000203:Activities of Daily Living / Q000145:classification*; D004185:Disability Evaluation; D006801:Humans; D029424:Pulmonary Disease, Chronic Obstructive / Q000145:classification / Q000175:diagnosis*; D011788:Quality of Life / Q000523:psychology; D015203:Reproducibility of Results; D011795:Surveys and Questionnaires