Disorders of the Nervous System Caused by Drugs, Toxins, and Chemical Agents, Amphetamines and Related Agents
Adams & Victors Principles of Neurology Chp 43, pg 1213, Ropper, A.H.,et al, 2014
Postural Hypotension:Adrenergic Responsivity, & Levodopa Therapy
Neurol 27:921, Corder,C.N.,et al, 1977