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Am J Epidemiol. 2009 Nov 15;170(10):1320; author reply 1320-1. doi: 10.1093/aje/kwp267. Epub 2009 Aug 31.

Re: "Methods of covariate selection: directed acyclic graphs and the change-in-estimate procedure".

PMID:
19720864
DOI:
10.1093/aje/kwp267
[Indexed for MEDLINE]
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