title: Diagnosis of airways obstruction should be based on symptoms and an FEV1/FVC ratio below the lower limit of normal.
authors.affiliation: Department of Pulmonary Diseases and Department of Paediatrics, Erasmus Medical Centre, Erasmus University, Rotterdam, Netherlands pquanjer@xs4all.nl.
authors.forename: Philip H
authors.initials: PH
authors.lastname: Quanjer
authors.affiliation: Department of Pulmonary Diseases, Isala, Zwolle, Netherlands.
authors.forename: Irene
authors.initials: I
authors.lastname: Steenbruggen
authors.affiliation: Department of Pulmonary Diseases, Isala, Zwolle, Netherlands.
authors.forename: Jan Willem
authors.initials: JW
authors.lastname: van den Berg
mesh_terms: D019468:Disease Management; D006801:Humans; D029424:Pulmonary Disease, Chronic Obstructive; D011788:Quality of Life; D012129:Respiratory Function Tests / Q000379:methods*