References
- Causes of death 1969–1978. Official Statistics of Sweden, National Central Bureau of Statistics, Stockholm
- Garraway W. M., Whisnant J. P., Furlan A. J., Phillips L. H., II, Kurland L. T., Fallon O. W. M. The declining incidence of stroke. New Engl. J. Med 1979; 300: 449–452