[Ultrastructure of the blood vessels of alloxan rats].
D000818:Animals; D003921:Diabetes Mellitus, Experimental / Q000473:pathology*; D003930:Diabetic Retinopathy / Q000473:pathology*; D008854:Microscopy, Electron; D051381:Rats; D012171:Retinal Vessels / Q000473:pathology*