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. Author manuscript; available in PMC: 2015 Jun 7.
Published in final edited form as: Bull Menninger Clin. 2014 Summer;78(3):243–252. doi: 10.1521/bumc.2014.78.3.243

Figure 1.

Figure 1

Percent of “Yes” answers to the questions “Have you ever tried a tobacco cigarette, even one or two puffs?” (dark bars) and “Have you ever tried an e-cigarette, even one or two puffs?” (light bars) according to age range: 18–20 years old (n = 68), 21–30 years old (n = 55), 31+ years old (n = 61).