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A systematic review of instrumental variable analyses using geographic region as an instrument

BACKGROUND: Instrumental variables analysis is a methodology to mitigate the effects of measured and unmeasured confounding in observational studies of treatment effects. Geographic area is increasingly used as an instrument. METHODS: We conducted a literature review to determine the properties of g...

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Publicat a:Cancer Epidemiol
Autors principals: Vertosick, Emily A., Assel, Melissa, Vickers, Andrew J.
Format: Artigo
Idioma:Inglês
Publicat: 2017
Matèries:
Accés en línia:https://ncbi.nlm.nih.gov/pmc/articles/PMC5700852/
https://ncbi.nlm.nih.gov/pubmed/29035744
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1016/j.canep.2017.10.005
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