title: [COPD--a multifactorial systemic disease].
authors.affiliation: Sahlgrenska Universitetssjukhuset, Göteborg. Sven.Larsson@lungall.gu.se
authors.forename: Sven A
authors.initials: SA
authors.lastname: Larsson
authors.forename: Claes-Göran
authors.initials: CG
authors.lastname: Löfdahl
mesh_terms: D000328:Adult; D000367:Age Factors; D001249:Asthma / Q000175:diagnosis; D003937:Diagnosis, Differential; D018450:Disease Progression; D006801:Humans; D008875:Middle Aged; D015995:Prevalence; D029424:Pulmonary Disease, Chronic Obstructive / Q000175:diagnosis / Q000453:epidemiology / Q000209:etiology / Q000401:mortality; D013147:Spirometry