title: 6-minute walk testing in COPD: is it reproducible?
authors.forename: G
authors.initials: G
authors.lastname: Criner
mesh_terms: D005080:Exercise Test / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D029424:Pulmonary Disease, Chronic Obstructive / Q000503:physiopathology*; D015203:Reproducibility of Results; D016138:Walking / Q000502:physiology*