1. Folstein, S. In Huntington's Disease: A Disorder of Families (Johns Hopkins, Baltimore, 1989).
2. Quarrel, O. & Harper, P.S. In Huntington's Disease (ed. Harper, P.S.) 37–80 (W.B. Saunders, Philadelphia, 1991).
3. Morris, M. In Huntington's Disease (ed. Harper, P.S.) 81–126 (W.B. Saunders, Philadelphia, 1991).
4. Quarrel, O. In Huntington's Disease (ed. Harper, P.S.) 141–178 (W.B. Saunders, Philadelphia, 1991).
5. Beal, M.F. Does impairment of energy metabolism result in excitoxic neuronal death in neurodegenerative illnesses?. Ann. Neurol. 31, 119–130 (1992).