Fig. 1From: Non-responders in a quitline evaluation are more likely to be smokers – a drop-out and long-term follow-up study of the Swedish National Tobacco QuitlineFlowchart illustrating the process followed in the RCT and the drop-out study. Clients were included from February 2009 to September 2010. The drop-out study was performed in February to March 2013Back to article page