
    inability to adequately recruit participants during pre-post operative period.
  
['cigarette smoking', 'obesity']
['varenicline']

        Inclusion Criteria:

          -  Smoker who has surgery scheduled 5-10 weeks in advance

        Exclusion Criteria:

          -  being contraindicated for varenicline use

          -  evidence of psychiatric instability

          -  being unwilling/unable to adhere to the study schedule

          -  be unwilling to provide study access to medical records

          -  being otherwise judged by the study team to be inappropriate for study participation
      