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Published by National Center for Health Statistics (NCHS) | U.S. Department of Health & Human Services | Catalog Last Checked: September 28, 2026 at 08:24 PM | Dataset Last Updated: January 30, 2003
Example SAS and SUDAAN programs from the National Immunization Survey (NIS) to produce estimates of vaccination coverage, provided by the National Center for Health Statistics (NCHS) at the CDC.

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