title: A reappraisal of the measurement of disease occurrence in rheumatoid arthritis.
authors.forename: A J
authors.initials: AJ
authors.lastname: MacGregor
authors.forename: A J
authors.initials: AJ
authors.lastname: Silman
mesh_terms: D001172:Arthritis, Rheumatoid / Q000453:epidemiology*; D004812:Epidemiologic Methods; D004813:Epidemiology / Q000592:standards*; D006801:Humans; D015994:Incidence