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. Author manuscript; available in PMC: 2007 Jul 17.
Published in final edited form as: Drug Alcohol Depend. 2007 Feb 5;89(1):93–96. doi: 10.1016/j.drugalcdep.2006.11.019

Figure 1.

Figure 1

Probability of remaining never DSM-IV nicotine dependent as a function of both years since daily smoking onset and quantity of smoking. Points with fewer than 20 cases have been omitted.