title: [Spirometry in patients with COPD in family practice and in a lung function laboratory equally trust worthy, but not interchangeable].
authors.forename: B P
authors.initials: BP
authors.lastname: Ponsioen
mesh_terms: D005194:Family Practice / Q000592:standards; D006801:Humans; D007753:Laboratories / Q000592:standards; D029424:Pulmonary Disease, Chronic Obstructive / Q000175:diagnosis*; D012129:Respiratory Function Tests; D013147:Spirometry / Q000379:methods* / Q000592:standards*