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5. [Optical and non-optical aids for the vision-impaired older patient]. Henkes HE. Ned Tijdschr Gerontol; 1979 Aug; 10(3):126-34. PubMed ID: 492593 [Abstract] [Full Text] [Related]
10. [Problems of supplying special corrective aids for outpatients with decreased vision]. Usik VA, Egorova TS. Med Tekh; 1983 Aug; (4):37-42. PubMed ID: 6621294 [Abstract] [Full Text] [Related]