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Methodological challenges when estimating the effects of season and seasonal exposures on birth outcomes
BACKGROUND: Many previous studies have found seasonal patterns in birth outcomes, but with little agreement about which season poses the highest risk. Some of the heterogeneity between studies may be explained by a previously unknown bias. The bias occurs in retrospective cohorts which include all b...
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| Main Authors: | , , |
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| Formato: | Artigo |
| Idioma: | Inglês |
| Publicado em: |
BioMed Central
2011
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| Assuntos: | |
| Acesso em linha: | https://ncbi.nlm.nih.gov/pmc/articles/PMC3102035/ https://ncbi.nlm.nih.gov/pubmed/21501523 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1186/1471-2288-11-49 |
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