[Methods for determining the population's demand for eyeglass optical items].
D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D005139:Eyeglasses / Q000600:supply & distribution*; D006801:Humans; D007223:Infant; D007909:Lenses / Q000600:supply & distribution*; D008433:Mathematics; D008722:Methods; D014586:USSR; D014505:Urban Population; D014787:Vision Tests
Metodika opredleneniia potrebnosti naseleniia v izdeliiakh ochkovoĭ optiki.