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Oral contraceptive use: interview data versus pharmacy records

S E Norell1, G Boethius, I Persson

  • 1Department of Pulmonary Medicine, Ostersund Hospital, Sweden.

International Journal of Epidemiology
|February 19, 1999
PubMed
Abstract

Keywords:
Acceptors--womenBiasComparative StudiesContraceptionContraceptive MethodsContraceptive Usage--womenData CollectionData SourcesDeveloped CountriesError SourcesEuropeFamily PlanningFamily Planning ProgramsMeasurementNorthern EuropeOral ContraceptivesResearch MethodologyResearch ReportSampling StudiesScandinaviaStudiesSurveysSweden

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