A. Hughes

The dopaminergic response in multiple system atrophy.

B Kleedorfer, A J Lees, A. Lees, 1992, Journal of neurology, neurosurgery, and psychiatry.

Motor response to levodopa in patients with parkinsonian motor fluctuations: a follow-up study over three years.

P. Kempster, A. Lees, A. Hughes, 1994, Journal of neurology, neurosurgery, and psychiatry.