Detection of vascular endothelial growth factor messenger RNA and vascular endothelial growth factor-like activity in proliferative diabetic retinopathy. - Malecaze,F.; Clamens,S.; Simorre-Pinatel,V.; Mathis,A.; Chollet,P.; Favard,C.; Bayard,F.; Plouet,J. (Arch Ophtalmol, 1994)