Quality of Life as a Concept and Measurable Entity.- Enhancing Quality of Life in the Population at Large.- Forging Ahead: Linking Health and Behavior to Improve Quality of Life in Older People.- Using Quality of Life Information to Set Priorities in Health Policy.- Improving the Quality of Life of People with Severe Mental Disorders.- Quality of Life for Students with Disabilities in Transition from School to Adulthood.- Improving the Quality of Life: Prescriptions for Change.