| http://www.w3.org/ns/prov#value | - SPF is a systematic community-based approach, developed by the federal Substance Abuse Mental Health Services Administration (SAMHSA) designed to ensure that substance abuse prevention programs can and do produce results.Youth NetYouth Net is a comprehensive afterschool program to deter alcohol, tobacco and other substance use, overweight, obesity and lack of physical activity and high-risk sexual
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