[Reliability and validity of death certificates specifying oral cancer as cause of death in Teresina, Piauí State, Brazil, 2004-2005].


Brazilian health policy depends on the accuracy of data in the health information system. This study aimed to assess the reliability and validity of data on underlying cause of death due to a specific neoplasm in the Municipality of Teresina, Piauí State, Brazil, based on all the death certificates from 2004 and 2005 that reported oral cancer as the… (More)


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