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. Author manuscript; available in PMC: 2016 Oct 1.
Published in final edited form as: Ther Drug Monit. 2015 Oct;37(5):661–669. doi: 10.1097/FTD.0000000000000201

Figure 2. Linearity evaluation.

Figure 2

a) Non-linear calibration curve of JWH-018 N-(5-hydroxypentyl) metabolite in urine (0.25–500µg/L)

b) Linear regression line of JWH-018 N-(5-hydroxypentyl) metabolite in urine (1–500µg/L) r2=0.993