Huntington's chorea and genealogical credibility.
D000368:Aged; D004641:Emigration and Immigration; D004739:England; D005260:Female; D005789:Genealogy and Heraldry; D049669:History, 16th Century; D049670:History, 17th Century; D049671:History, 18th Century; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D006816:Huntington Disease / Q000266:history*; D008297:Male; D010375:Pedigree; D014481:United States