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. Author manuscript; available in PMC: 2014 Oct 1.
Published in final edited form as: Addiction. 2013 Jul 5;108(10):1818–1828. doi: 10.1111/add.12250

Figure 2.

Figure 2

The association between rs578776 with A) cotinine levels B) Urinary TNE C) Urinary NNAL D) Urinary 1-hydroxypryrene. IQR= interquartile range. The P-values were obtained from additive models.