Footnotes

• Contributors JK, SC and KP collected and analysed the tobacco industry activities under the supervision of SL. JK, SC and KP prepared the first draft of the manuscript. SL reviewed all of the drafts and helped prepare the final manuscript.

• Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

• Competing interests None declared.

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