Funding for this research was provided by:
Laura and John Arnold Foundation (None)
National Cancer Institute (CA-087472)
Tobacco-Related Disease Research Program (25IR-0025, 26IR-0014)
Article History
Received: 17 December 2018
Accepted: 30 July 2019
First Online: 22 August 2019
Ethics approval and consent to participate
: Not applicable.
: Not applicable.
: The authors declare they have no competing interests.