Health status measurement in chronic obstructive pulmonary disease.
D018849:Controlled Clinical Trials as Topic; D005541:Forced Expiratory Volume; D006304:Health Status; D006305:Health Status Indicators; D006801:Humans; D016011:Normal Distribution; D029424:Pulmonary Disease, Chronic Obstructive / Q000175:diagnosis*; D011788:Quality of Life; D015203:Reproducibility of Results; D011795:Surveys and Questionnaires; D016896:Treatment Outcome