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Ford A, MacKintosh AM, Moodie C, et al. Cigarette pack design and adolescent smoking susceptibility: a crosssectional survey. BMJ Open 2013;3:e003282. In the ‘Statistical analysis’ section of this article, the occurrence of ‘>.44’ should have been ‘>.4’. The corrected sentence is as follows:

‘Principal components were extracted using varimax rotation with the criteria of eigenvalues greater than 1, consideration of the scree plot and component loadings >.4.’

We apologise for this error.

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