Funding for this research was provided by:
National Institute of Environmental Health Sciences (ES022186)
National Institute of Environmental Health Sciences (ES028288)
National Institute of Environmental Health Sciences (ES026684)
Pennsylvania Department of Health (Tobacco CURE)
National Institute of Food and Agriculture (PEN04607)
National Institute of Food and Agriculture (PEN04607)
National Cancer Institute (CA124533)
Article History
Received: 23 January 2019
Accepted: 21 May 2019
First Online: 11 June 2019
Ethics approval and consent to participate
: Not applicable
: Not applicable
: The authors declare that they have no competing interests.