Smoking and Related Outcomes.
As a feasibility trial, there was no primary outcome, but the anticipated primary abstinence outcome for any future definitive trial was based on the Russell standardHypothesized mechanisms of action collected at 6 weeks included lapse incidence in the first 2 weeks of a quit attempt or since enrollment if no attempt was made, mean frequency of use category (0, 1–5, 6–10, and >10 times) across 20 lapse prevention strategies for avoiding or coping with the desire to smoke,