An error has been noted in the above mentioned article by Krupski et al. In the discussion section in the fourth paragraph, ‘greater than 15 cigarettes per day’ should read ‘greater than or equal to 10 cigarettes per day’.

The corrected sentence should read:

This finding mirrors the results of a recent randomised trial that found less of an effect of combination NRT for heavier smokers, defined as smoking greater than or equal to 10 cigarettes per day (Smith et al., 2013).