Frequency of colour blindness and hand clasping in two endogamous caste groups of Garhwal.
D000293:Adolescent; D000328:Adult; D002648:Child; D003117:Color Vision Defects / Q000453:epidemiology* / Q000235:genetics; D005006:Ethnicity; D005260:Female; D007839:Functional Laterality; D006801:Humans; D007194:India; D008297:Male; D008875:Middle Aged