Infections of the Nervous System, (Bacterial, Fungal, Spirochetal, Parasitic) and Sarcoidosis, Neurosyphilis
Adams & Victors Principles of Neurology, Chp 32, pg 723, Ropper, A.H.,et al, 2014
Important Advances in Clinical Medicine
West J Med 123:128, Mosier,J.M.,et al, 1975