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. Author manuscript; available in PMC: 2017 Oct 1.
Published in final edited form as: Drug Alcohol Depend. 2016 Aug 28;167:199–206. doi: 10.1016/j.drugalcdep.2016.08.622

Figure 2.

Figure 2

A. Urine creatinine-adjusted THCCOOH concentrations declined during four weeks of monitored cannabis abstinence. All values represent medians and interquartile ranges. Values are only presented for the participants who provided urine samples with THCCOOH values under the limit of detection (500ng/mL). B. Unadjusted THCCOOH concentrations declined during four weeks of monitored cannabis abstinence. All values represent means and standard errors. Values are coded as “501” for participants with urine THCCOOH values over the limit of detection (500ng/mL).