PT - JOURNAL ARTICLE AU - Natalie McGill TI - How to recognize the signs of substance abuse DP - 2013 Oct 01 TA - The Nation's Health PG - 28--28 VI - 43 IP - 8 4099 - http://www.thenationshealth.org/content/43/8/28.short 4100 - http://www.thenationshealth.org/content/43/8/28.full SO - Nations Health2013 Oct 01; 43