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Is questionnaire information valid in the study of a chronic disease such as diabetes? The Nord-Trøndelag diabetes study.
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    Midthjell K, Holmen J, Bjørndal A, et al
    Is questionnaire information valid in the study of a chronic disease such as diabetes? The Nord-Trøndelag diabetes study.

    Publication history

    • First published October 1, 1992.
    Online issue publication 
    October 01, 1992

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