title: Defining airflow obstruction.
authors: Institute of Occupational and Environmental Medicine, University of Birmingham, Birmingham, UK m.r.miller@bham.ac.uk.
authors: Martin R
authors: MR
authors: Miller
mesh_terms: D001249:Asthma / Q000175:diagnosis* / Q000453:epidemiology*; D005260:Female; D006801:Humans; D008297:Male; D029424:Pulmonary Disease, Chronic Obstructive / Q000175:diagnosis* / Q000453:epidemiology*