title: The Midspan studies.
authors.affiliation: Public Health and Health Policy, Division of Community Based Sciences, University of Glasgow, 1 Lilybank Gardens, Glasgow G12 8RZ, Scotland, UK. c.l.hart@udcf.gla.ac.uk
authors.forename: Carole L
authors.initials: CL
authors.lastname: Hart
authors.forename: Pauline L
authors.initials: PL
authors.lastname: MacKinnon
authors.forename: Graham C M
authors.initials: GC
authors.lastname: Watt
authors.forename: Mark N
authors.initials: MN
authors.lastname: Upton
authors.forename: Alex
authors.initials: A
authors.lastname: McConnachie
authors.forename: David J
authors.initials: DJ
authors.lastname: Hole
authors.forename: George
authors.initials: G
authors.lastname: Davey Smith
authors.forename: Charles R
authors.initials: CR
authors.lastname: Gillis
authors.forename: Victor M
authors.initials: VM
authors.lastname: Hawthorne
mesh_terms: D002318:Cardiovascular Diseases / Q000453:epidemiology* / Q000209:etiology*; D015331:Cohort Studies; D005192:Family Health; D005260:Female; D006801:Humans; D008297:Male; D008403:Mass Screening / Q000458:organization & administration*; D012140:Respiratory Tract Diseases / Q000453:epidemiology / Q000209:etiology; D012606:Scotland / Q000453:epidemiology