National, State, and Local Area Vaccination Coverage Among Children Aged 19--35 Months --- United States, 2008
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https://cmr.earthdata.nasa.gov/search/concepts/C1214138048-SCIOPS.html
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资源简介：
The National Immunization Survey (NIS) estimates vaccination coverage among children aged 19--35 months for 50 states and selected local areas. The NIS is an ongoing, random-digit--dialed survey of households with children aged 19--35 months at the time of interview, followed by a mail survey of the children's vaccination providers to collect vaccination information. Data are weighted to adjust for households with multiple telephone lines, household nonresponse, and exclusion of households without landline telephones.
提供机构：
SCIOPS
