Myers, R.H.; Sax, D.S.; Schoenfeld, M; Bird, E.D.; Wolf, P.A.; Vonsattel, J.P.; White, R.F.; Martin, J.B.
(BMJ Publishing Group, 1985)
Twenty-five patients with late-onset Huntington's disease were studied; motor impairment appeared at age 50 years or later. The average age at onset of chorea was 57.5 years, with an average age at diagnosis of 63.1 years. ...