2010-04-062022-11-012010-04-062022-11-012006http://www.policyinstitute.iu.edu/PubsPDFs/Principles%20of%20Preventionpresentation.pdfhttp://hdl.handle.net/2450/4621A PDF of a Powerpoint file.An overview of successful systems of care and levels of intervention including systemic prevention, early intervention, and treatment.Presentation