Referencer
- Collaborative Group for the Study of Stroke in Young Women (1973): Oral contraception and increased risk of cerebral iscemia or thrombosis. New Engl. J. Med., 288: 871–878
- Fruensgaard K. Apoplektiske insulter hos unge. Ugeskr. Lâg. 1974; 136: 2736–2740
- Marquardsen J., Stensgaard Hansen B. Registrering af apoplexia cerebri i Frederiksberg kommune. Ugeskr. Lâg. 1973; 135: 979–982
- Royal College of General Practitioners. Oral contraceptives and health. Pitman Medical, London 1974