Received: 5 April 2020
Accepted: 23 April 2020
First Online: 9 May 2020
Compliance with ethical standards
: The authors report no competing interests for the past 36 months. For the past 60 months, two of his studies were funded by the non-profit association AEMSA and one study was funded by the non-profit association Tennessee Smoke-Free Association. AB reports no conflict of interest. AB has nothing to report. RN receives funding from the Food and Drug Administration Center for Tobacco Products via contractual mechanisms with Westat and the National Institutes of Health. Within the past three years, he has served as a paid consultant to the Government of Canada and the FDA via contracts with Industrial Economics Inc., and has received an honorarium for a virtual meeting from Pfizer Inc.
: Not applicable. The present study is an analysis of published studies using anonymized data.
: Not applicable.
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