The evolution and natural history of diabetic retinopathy.
D000328:Adult; D003930:Diabetic Retinopathy / Q000473:pathology / Q000503:physiopathology*; D006801:Humans; D008875:Middle Aged; D010539:Permeability; D012039:Regional Blood Flow; D012160:Retina / Q000503:physiopathology; D012171:Retinal Vessels / Q000503:physiopathology; D014792:Visual Acuity