450
Participants
Start Date
March 5, 2019
Primary Completion Date
March 9, 2022
Study Completion Date
March 9, 2022
Cigarettes
smokes daily
E-Cigarettes
E-cigarette usage \>/= 5 days/week
University of Wisconsin, Madison
National Institutes of Health (NIH)
NIH
National Heart, Lung, and Blood Institute (NHLBI)
NIH
University of Wisconsin, Madison
OTHER