1. Retinopathy at diagnosis of diabetes, with special reference to patients under 40 yr of age;Soler;Br J Ophthalmol,1969
2. Long-term diabetes;Oakley;Q J Med,1974
3. Studies in diabetic retinopathy: An investigation of 1000 cases of diabetes;Kornerup;Acta Med Scand,1955
4. A diabetes survey;College of General Practitioners;Br Med J,1962
5. The prevalence of blindness in diabetics;Keen;J Coll Physicians Lond,1972