D.R. Williams

The yawning reflex: An upper motor neuron sign in amyotrophic lateral sclerosis

D.R. Williams, David R. Williams, 2000, Neurology.

Intravenous Lignocaine (Lidocaine) Infusion for the Treatment of Chronic Daily Headache with Substantial Medication Overuse

D.R. Williams, R. Stark, D. Williams, 2003, Cephalalgia : an international journal of headache.

Does levodopa accelerate the pathologic process in Parkinson disease brain?

T. Révész, A. Lees, S. O'sullivan, 2011, Neurology.