Disorders of the Nervous System Caused by Drugs, Toxins, and Chemical Agents, Sedative-Hypnotic Drugs
Adams & Victors Principles of Neurology Chp 43, pg 1206, Ropper, A.H.,et al, 2014
Trihexyphenidyl Withdrawal Encephalopathy
Ann Neurol 41:133-134, Johkura,K.,et al, 1997