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Comment
. 1996 Mar 1;143(5):522-3.
doi: 10.1093/oxfordjournals.aje.a008773.

Re: Ecologic studies--biases, misconceptions, and counterexamples

S Richardson, C Guihenneuc-Jouyaux, V Lasserre
Comment

Re: Ecologic studies--biases, misconceptions, and counterexamples

S Richardson et al. Am J Epidemiol. .
No abstract available

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