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. 2013 Aug 20;3(8):e292. doi: 10.1038/tp.2013.62

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Copyright © 2013 Macmillan Publishers Limited

This work is licensed under the Creative Commons Attribution-NonCommercial-No Derivative Works 3.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/3.0/

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Log-rank survival analysis for abstinence versus cocaine relapse in the CG and CC genotype groups. The survival rate for the CG genotype group was significantly lower than for the CC genotype group (Log-rank χ²=5.242; P=0.0075). Within 14 days, only 10% individuals with the CG genotype remain abstinence of cocaine use; 45% individuals with the CC genotype remain abstinence. The Y axis shows the proportion of participants who did not relapse; the X axis shows the 90-day follow-up time period.