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. Author manuscript; available in PMC: 2011 Jun 1.
Published in final edited form as: Drug Alcohol Depend. 2010 Mar 1;109(1-3):198–204. doi: 10.1016/j.drugalcdep.2010.01.004

Figure 2.

Figure 2

Infant vagal tone (V) on days 1 and 3 by the percent of maternal positive urine toxicology evaluations during methadone treatment.