title: Definition of asthma: possible approaches in genetic studies.
authors.affiliation: Department of Pulmonology, University Hospital Groningen, Haren, The Netherlands.
authors.forename: D S
authors.initials: DS
authors.lastname: Postma
authors.forename: G G
authors.initials: GG
authors.lastname: Meijer
authors.forename: G H
authors.initials: GH
authors.lastname: Koppelman
mesh_terms: D001249:Asthma / Q000235:genetics* / Q000503:physiopathology*; D016535:Bronchial Hyperreactivity / Q000503:physiopathology; D006801:Humans; D007249:Inflammation / Q000503:physiopathology; D010641:Phenotype; D012307:Risk Factors; D012720:Severity of Illness Index