title: The Peak Flow Working Group: the definition of peak expiratory flow.
authors.affiliation: University of Aarhus, Dept of Environmental and Occupational Medicine, Denmark.
authors.forename: O F
authors.initials: OF
authors.lastname: Pedersen
authors.forename: M R
authors.initials: MR
authors.lastname: Miller
mesh_terms: D006801:Humans; D010366:Peak Expiratory Flow Rate; D012129:Respiratory Function Tests / Q000295:instrumentation* / Q000592:standards