Secular variation in handedness over ninety years.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D002648:Child; D003468:Cultural Evolution; D003469:Culture; D004292:Dominance, Cerebral / Q000502:physiology*; D007839:Functional Laterality; D006801:Humans; D008875:Middle Aged