2 Matching Annotations
  1. Jul 2018
    1. On 2017 Feb 14, Peter Hajek commented:

      To clarify the dependence potential of vaping, could the authors provide data on never-smokers who became daily vapers please?


      This comment, imported by Hypothesis from PubMed Commons, is licensed under CC BY.

  2. Feb 2018
    1. On 2017 Feb 14, Peter Hajek commented:

      To clarify the dependence potential of vaping, could the authors provide data on never-smokers who became daily vapers please?


      This comment, imported by Hypothesis from PubMed Commons, is licensed under CC BY.