Fig. 2From: The impact of cigarette and e-cigarette use history on transition patterns: a longitudinal analysis of the population assessment of tobacco and health (PATH) study, 2013–2015Sankey diagrams by wave 1 study groups based on transitions from wave 1 to wave 2: (a) wave 1 exclusive cigarette smoker transitions, (b) wave 1 exclusive e-cigarette user transitions and (c) wave 1 dual user transitionsBack to article page