Cancer prevention strategies for the future: risk identification and preventive intervention.

The knowledge base may be advanced by concentrating on primary prevention of cancer, which in turn will inform the development of effective and efficient intervention strategies for prevention that may substantially reduce cancer incidence. Several priority areas have been identified, and with new multidisciplinary approaches spanning the biological, epidemiological, social, behavioral, and economic sciences, new initiatives in primary cancer prevention may lead the way toward reducing cancer mortality through primary prevention.