Figure 1.

Concept map displaying 12 e-cigarette user-identified clusters and statements describing a specific action/reaction if the only e-liquid flavours available for purchase in the USA were tobacco-only flavour, menthol-only flavour or unflavoured (and no other flavours). Numbered points on the map that are closer to one another represent statements of more similar content, whereas points on the map that are further apart represent statements of less similar content. Greater number of layers in clusters indicate higher mean ratings of statements within each cluster based on the rating task.