Funding for this research was provided by:
National Heart, Lung, and Blood Institute (R18HL108788)
Received: 20 August 2018
Accepted: 11 January 2019
First Online: 22 January 2019
Ethics approval and consent to participate
: The study was approved by the Human Investigation Committee of Yale University.
: Not applicable
: Dr. Toll testifies as an expert witness on behalf of plaintiffs who filed litigation against the tobacco industry. All other authors declare that they have no competing interests.
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