Cellular and biochemical aspects in diabetic retinopathy : proceedings of the Colloquium on Cellular and Biochemical Aspects in Diabetic Retinopathy, held in Paris (France), 2-3 February, 1978 - Colloquium on Cellular and Biochemical Aspects in Diabetic Retinopathy, Paris, France, 1978; Regnault, François; Duhault, J.; Institut national de la santé et de la recherche médicale (France) (INSERM symposium, 1978)