PT - JOURNAL ARTICLE AU - Natalie McGill TI - Study: Most adults in opioid treatment programs are middle-aged DP - 2016 Jan 01 TA - The Nation's Health PG - E56--E56 VI - 45 IP - 10 4099 - http://www.thenationshealth.org/content/45/10/E56.short 4100 - http://www.thenationshealth.org/content/45/10/E56.full SO - Nations Health2016 Jan 01; 45