National Neighborhood Data Archive (NaNDA): Ophthalmologists by Census Tract and ZCTA, United States, 1990-2021
收藏DataCite Commons2025-03-25 更新2025-04-16 收录
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https://www.openicpsr.org/openicpsr/project/222263/version/V1/view
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Description
This dataset contains measures of the number and density of ophthalmologists
per United States Census Tract or ZIP Code Tabulation Area (ZCTA) from 1990
through 2021. The dataset includes four separate files for four different
geographic areas (GIS shapefiles from the United States Census Bureau). The
four geographies include:<br>Census Tract 2010Census Tract 2020 ZIP Code Tabulation Area (ZCTA) 2010ZIP Code Tabulation Area (ZCTA) 2020 Information about which dataset to use can be found in the
Usage Notes section of this document.<br>
提供机构:
ICPSR - Interuniversity Consortium for Political and Social Research
创建时间:
2025-03-10



