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Trends in health in the United States.
The National Center for Health Statistics (NCHS) conducts a variety of surveys designed to provide cross-sectional estimates of the prevalence of various factors measuring the health of Americans. When these cross-sectional estimates are put together and plotted over time, they provide a picture of...
Autores principales: | , |
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Formato: | Texto |
Lenguaje: | English |
Publicado: |
1985
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1568714/ https://www.ncbi.nlm.nih.gov/pubmed/4085430 |