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. Author manuscript; available in PMC: 2015 Feb 1.
Published in final edited form as: Am J Prev Med. 2014 Feb;46(2):e31–e37. doi: 10.1016/j.amepre.2013.10.022

Figure 6.

Figure 6

Mean cigarettes per day by gender, calendar year, and birth cohort. Dashed lines indicate regions of extrapolation. Interactive Plot: [Males, Females].