title: Recommendations for epidemiological studies on COPD.
authors.forename: Philip H
authors.initials: PH
authors.lastname: Quanjer
authors.forename: Sanja
authors.initials: S
authors.lastname: Stanojevic
authors.forename: Maureen P
authors.initials: MP
authors.lastname: Swanney
authors.forename: Martin R
authors.initials: MR
authors.lastname: Miller
mesh_terms: D016021:Epidemiologic Studies; D005260:Female; D006801:Humans; D008297:Male; D029424:Pulmonary Disease, Chronic Obstructive / Q000453:epidemiology*; D012107:Research Design / Q000592:standards*