Huntington's chorea in South Carolina: natural history and clinical features.
D000328:Adult; D044383:Black People; D005260:Female; D049673:History, 20th Century; D006801:Humans; D006816:Huntington Disease / Q000453:epidemiology* / Q000266:history / Q000473:pathology; D008297:Male; D008875:Middle Aged; D013022:South Carolina; D001741:Black or African American