TY - GEN AU - National Institute on Drug Abuse A1 - C4 - This grey literature reference is included in the Academy's Literature Collection in keeping with our mission to gather all sources of information on integration. Grey literature is comprised of materials that are not made available through traditional publishing avenues. Often, the information from unpublished resources can be limited and the risk of bias cannot be determined. C5 - Opioids & Substance Use; Grey Literature CY - Bethesda, MD PB - National Institute on Drug Abuse (NIDA) PP - Bethesda, MD PY - 2018 ST - Understanding Drug Use and Addiction DrugFacts T1 - Understanding Drug Use and Addiction DrugFacts TI - Understanding Drug Use and Addiction DrugFacts U1 - Opioids & Substance Use; Grey Literature U4 - This grey literature reference is included in the Academy's Literature Collection in keeping with our mission to gather all sources of information on integration. Grey literature is comprised of materials that are not made available through traditional publishing avenues. Often, the information from unpublished resources can be limited and the risk of bias cannot be determined. UR - https://nida.nih.gov/publications/drugfacts/understanding-drug-use-addiction Y1 - 2018 ER -