The frequency of colour blindness in the Newars of Nepal Valley.
D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D003117:Color Vision Defects / Q000453:epidemiology* / Q000235:genetics; D005006:Ethnicity; D005260:Female; D005828:Genetics, Population; D006801:Humans; D008297:Male; D008875:Middle Aged; D009390:Nepal; D012923:Social Class