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
Out of Africa, Trypanosomiasis
NEJM 347:749-753, Sahlas,D.J.,et al, 2002