Keywords: Addiction/Substance Use, Adolescents (13-19 years), Adults (20-59 years), Alcohol Abuse/Use, Behaviour Modification (e.g., provision of item/tool, incentives, goal setting), Clinic, Communicable Disease/Infection, Community, Drug Abuse/Use, Female, Healthy Communities (e.g., community development, multicultural health, rural/urban health) , High Risk Group (e.g., adolescent parents, elderly, homeless, substance users), Male, Mental Health, Residential centre, Sexual Health (e.g., pregnancy prevention, family planning, sexual behaviour), Social Determinants of Health (e.g., social environments, education, employment and working conditions), Social Support (e.g., counseling, case management, outreach programs)