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For the first question, I would quit was used as a response option instead of None of these because the question was framed to force the participant to think of the three packs as the only packs available to access and smoke

Amanda Baker is funded by a NHMRC Senior Research Fellowship (G1601524)

Social Engagement: Meaningful social interactions provide natural cognitive stimulation and can complement formal training programs

Kenneth Michael Cummings , PhD, MPH, is co-leader of the Tobacco Research Program at the Hollings Cancer Center, Medical University of South Carolina, US.