1. Hayden, M. R. Huntington’s Chorea. Springer-Verlag, 1981.
2. Mazziotta, J. C. Huntington’s disease: studies with structural imaging techniques and positron emission tomography. Seminars in Neurology, 9(4):360–369, 1989.
3. Parkinson, J. An essay on the shaking palsy. Whittingham and Rowland, London, 1817.
4. Bennett, J. P. Biochemical pathology and pharmacology of Parkinson’s disease. In The Comprehensive Management of Parkinson’s Disease. Stern, M. B., and Hurtig H. I. (Eds), PMA Publishing Corp., 1988, pp. 63–76.
5. Revely, M. A. CT scans in schizophrenia. Brit Al Psychiatry, 146:367–371, 1985.