title: Diabetic retinopathy: new vessels arising from the optic disc. I. Grading system and natural history.
mesh_terms: D000328:Adult; D001766:Blindness / Q000209:etiology; D003097:Collateral Circulation; D003930:Diabetic Retinopathy / Q000145:classification / Q000150:complications / Q000175:diagnosis*; D005260:Female; D005654:Fundus Oculi; D006801:Humans; D006988:Hyphema / Q000209:etiology; D008297:Male; D008875:Middle Aged; D010781:Photography; D011379:Prognosis; D012173:Retinitis / Q000209:etiology; D013997:Time Factors; D014792:Visual Acuity