Parkinson's Disease: Unanswered Questions.- Blood Platelets as Models for Neurons: Uses and Limitations.- Changing Concepts of Nigral Dopamine System Function Within the Basal Ganglia: Relevance to Extrapyramidal Disorders.- An Autoradiographic Study of the Striatofugal Fibers in the Monkey.- Kinetics of L-DOPA Metabolism in the Caudate Nucleus of Cats with Ventrotegmental Lesions.- Spiro- peridol Binding in the Human Caudate Nucleus.- Quantitative Dissection of Human Brain Areas: Relevance to Transmitter Analyses.- On the Mechanism of the Antiparkinsonian Action of 1-DOPA and Bromocriptine: A Theoretical and Experimental Analysis of Dopamine Receptor Sub- and Super- sensitivity.- Contributions of ?- Adrenoreceptor Blockade to Extrapyramidal Effects of Neuroleptic Drugs.- The Decarboxylation of DOPA in the Parkinsonian Brain: In vivo Studies on an Animal Model.- Metabolic Alterations in an Animal Model of Huntington's Disease Using the 14C- Deoxyglucose Method.- Progressive Supranuclear Palsy: Clinico-Pathological and Biochemical Studies.- Clinical Analysis of Akinesia.- Akinetic Freezing and Trick Movements in Parkinson's Disease.- Distribution and Metabolism of the Potential Anti-Parkinson Drug Memantine in the Human.- Long-Term Responses of Parkinson's Disease to Levodopa Therapy.- Monoamine Oxidase Inhibitors as Anti-Depressant Drugs and as Adjunct to L-Dopa Therapy of Parkinson's Disease.- Dopamine Oxidation and Its Inhibition by (-)-Deprenyl in Man.- Dopamine Metabolism in Human Brain: Effects of Monoamine Oxidase Inhibition in vitro by (-)Deprenyl and (+) and (-)Tranylcypromine.- Unilateral Parkinson's Disease and Contralateral Tardive Dyskinesia: A Unique Case with Successful Therapy That May Explain the Pathophysiology of These Two Disorders.- Lecithin in Parkinson's Disease.- Is the Neurosurgical Treatment of Parkinson's Disease Still Indicated?.- Benign and Malignant Types of Parkinson's Disease: Clinical and Patho-Physiological Characterization.- Theoretical and Clinical Aspects of the Tourette Syndrome (Chronic Multiple Tic).- The Neuropathology of GABA Neurons in Extrapyramidal Disorders.- The Potential of GABA Mimetics in the Therapy of Extrapyramidal Disorders.