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Tobacco industry-funded research on standardised packaging: there are none so blind as those who will not see!

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  • Contributors The initial statistical analysis was done by PD. Both authors contributed equally to writing this paper.

  • Competing interests None.

  • Provenance and peer review Not commissioned; externally peer reviewed.

  • i The original working paper was dated March 2014. The authors later revised it, including a response to the critique of Laverty et al.2 The original working paper can be accessed at

  • ii We have actually used a confidence interval of 0.996062135=0.951/13, thus the p value of 0.05 for the 13-year period.