Age-related macular degeneration: legal vs total blindness.
Pinsky
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D000203:Activities of Daily Living; D000367:Age Factors; D000368:Aged; D001766:Blindness / Q000145:classification / Q000209:etiology*; D006801:Humans; D008268:Macular Degeneration / Q000150:complications*; D014792:Visual Acuity