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. Author manuscript; available in PMC: 2020 Sep 1.
Published in final edited form as: Addiction. 2019 May 20:10.1111/add.14666. doi: 10.1111/add.14666

Figure 1: Participant flow diagram.

Figure 1:

CPD=Condition that reduced cigarettes/day; DSM-5=Diagnostic and Statistical Manual of Mental Disorders Fifth Edition; NRT=Nicotine replacement therapy; TCORS=Tobacco Center on Regulatory Science; VLNC=Condition that switched to very low nicotine content cigarettes.