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Temporal Trends in the Rates of Singletons, Twins and Higher-order Multiple Births Over Five Decades Across Racial Groups in the United States
We analysed Natality data obtained from the National Vital Statistics System from 1971 through 2018. Overall, the rates of singletons declined among all racial groups over the five decades of the study. However, the rates of twins and higher-order multiples increased over the same period although fo...
| Autores principales: | , , |
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
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Global Health and Education Projects, Inc
2020
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| Materias: | |
| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7376828/ https://www.ncbi.nlm.nih.gov/pubmed/32724725 http://dx.doi.org/10.21106/ijma.377 |