Commentary on Smolkowski et al. (2010): why is it important to assume that non-responders in tobacco cessation trials have relapsed?

@article{Hajek2010CommentaryOS,
  title={Commentary on Smolkowski et al. (2010): why is it important to assume that non-responders in tobacco cessation trials have relapsed?},
  author={Peter Hajek and Robert West},
  journal={Addiction},
  year={2010},
  volume={105 6},
  pages={1016-7}
}