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

Am J Epidemiol. 1996 Mar 1;143(5):522-3. doi: 10.1093/oxfordjournals.aje.a008773.
No abstract available

Publication types

  • Letter
  • Comment

MeSH terms

  • Bias*
  • Confounding Factors, Epidemiologic
  • Data Interpretation, Statistical
  • Ecology*