1. The corneal arcus;Cogan;N. Engl. J. Med.,1974
2. Arcus senilis, its pathology and histochemistry;Cogan;Arch. Ophthal. (Chicago),1959
3. Clofibrate: a final verdict;Committee of Principal Investigators;Lancet,1978
4. Clofibrate and niacin in coronary heart disease;Coronary Drug Project Research Group;J. Amer. med. Ass.,1975
5. Arcus senilis corneae;Forsius;Acta ophthal. (Kbh.),1954