Validity of self-reported number of teeth in middle-aged Finnish adults: The Northern Finland Birth Cohort Study 1966
Background: We examined the validity of self-reported number of teeth in middle-aged adults by using representative cohort data to compare corresponding self-reported and clinical values. Methods: This validity study is part of the representative 46-year-old follow-up of the Northern Finland Birth C...
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BioMed Central Ltd.
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