[Ocular ultrasonic blood rheography with O-cross counter. Report IV. Studies of diabetic retinopathy].
D000368:Aged; D003930:Diabetic Retinopathy / Q000503:physiopathology*; D006801:Humans; D008875:Middle Aged; D009880:Ophthalmic Artery / Q000503:physiopathology*; D012161:Retinal Artery / Q000503:physiopathology*; D012212:Rheology; D014463:Ultrasonography