Keywords: Addiction/Substance Use, Adolescents (13-19 years), Alcohol Abuse/Use, Behaviour Modification (e.g., provision of item/tool, incentives, goal setting), Clinic, Cultural group, Drug Abuse/Use, High Risk Group (e.g., adolescent parents, elderly, homeless, substance users), Home, Meta-analysis, Primary health care provider office (e.g., Public health nurse, dietitian, social worker), Social Support (e.g., counseling, case management, outreach programs) , Youth Health