Infections of the Nervous System, (Bacterial, Fungal, Spirochetal, Parasitic) and Sarcoidosis, BrucellosisAdams & Victors Principles of Neurology, Chp 32, pg 710, Ropper, A.H.,et al, 2014
Chronic MeningitisMedicine 55:341, Ellner,J.J.,et al, 1976