Effects of platelet function, Factor VIII, v. Willebrand’s factor and fibrinolysis on development of diabetic retinopathy after long term diabetes mellitus. Monte Carlo, Sixth Congr. on thrombosis of the mediterranean, league against thromboembolic diseases. Abstr - Bern, M. M; Rand, L; Peirce, C; Fraser, M; Erickson, S; White, K; Arkin, C; Gallavan, M (1980)