Early signs of Huntington's chorea.
D000328:Adult; D000367:Age Factors; D000368:Aged; D001008:Anxiety Disorders / Q000175:diagnosis; D003937:Diagnosis, Differential; D006801:Humans; D006816:Huntington Disease / Q000175:diagnosis* / Q000209:etiology / Q000517:prevention & control; D008017:Life Expectancy; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D012559:Schizophrenia / Q000175:diagnosis; D013997:Time Factors