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Erratum, Vol. 9, May 31 Release

Suggested citation for this article: Erratum, Vol. 9, May 31 Release. Prev Chronic Dis 2012;9:110277e. DOI:

Because of an editing error, we omitted a symbol used for statistical calculations in the article “Economic Effect of Smoke-Free Ordinances on 11 Missouri Cities.” The sentence should have read, “The percentage change between preordinance and postordinance was estimated by exp (beta4hat) – 1.” This correction was made to our website on June 27, 2012, and appears online at We regret any confusion or inconvenience this error may have caused.

The opinions expressed by authors contributing to this journal do not necessarily reflect the opinions of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions.

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