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Naturally similar: Natural American Spirit and Nat Sherman’s new cigarette

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  • Contributors MJL, MJ and CA conceived the paper. MJL and MJ led the writing and editing of the paper. CA contributed to editing of the paper.

  • Funding This work was supported in part by NCI and FDA Centre for Tobacco Products (CTP) under U54CA229973.

  • Disclaimer The content is solely the responsibility of the authors and does not necessarily represent the official views of NCI or FDA.

  • Competing interests None declared.

  • Patient consent for publication Not required.

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

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