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Major tobacco companies have technology to reduce carcinogen levels but do not apply it to popular smokeless tobacco products

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  • Funding Our research on smokeless tobacco is supported by grants CA-81301, CA-141531, CA-1135884, and DA-013333 from the US National Institutes of Health.

  • Competing interests SSH is a witness for the plaintiff in a smokeless tobacco case. DKH has a grant from Nabi Biopharmaceuticals to conduct a clinical trial for the nicotine vaccine.

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