Rates of positivity for six drug classes.
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^Pearson Chi-square test performed; &Fisher’s Exact test performed; *Methadone positive n=98, Methadone negative n=92; #Methadone positive n=28, Methadone negative n=62; +Methadone positive n=68, Methadone negative n=60
创建时间：
2015-12-02
