Viral Infections of the Nervous System, Chronic Meningitis, and Prior Diseases, Encephalitis Lethargica (non Economo Disease, sleeping sickness)
Adams & Victors Principles of Neurology, Chp 33, pg 768, Ropper, A.H.,et al, 2014
Encephalitis lethargica syndrome:20 new cases and evidence of basal ganglia autoimmunity
Brain 127, 21-33, Dale, R.C., et al, 2003