1. Cost-benefit and cost-effectiveness analysis in health care;Warner,1982
2. Effect of a self care education program on medical visits;Vickery;J Am Med Assoc,1983
3. Behavioral, health, and cost outcomes of an HMO-based prenatal health education program;Ershoff;Public Health Rep,1983
4. Self-care education: impact on HMO costs;Kemper;Med Care,1982