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. Author manuscript; available in PMC: 2008 Mar 16.
Published in final edited form as: Drug Alcohol Depend. 2006 Sep 27;87(2-3):258–267. doi: 10.1016/j.drugalcdep.2006.08.020

Fig. 1.

Fig. 1

Concentration patterns of opiate analytes in oral fluid collected over time from heroin-dependent pregnant women enrolled in methadone maintenance treatment.