Prevalence of Untreated Dental Caries in Children and Adolescents Source: National Center for Health Statistics (NCHS), CDC Series: NCHS Data Brief No. 19

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The files within NCHSK19.zip appear to be related to a Microsoft Office Excel document (.xlsx). The presence of files like xl/worksheets/ , xl/workbook.xml , and xl.styles.xml suggests that the zip file contains a spreadsheet.

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