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
Early Descriptions of Common Neurologic Signs
Mayo Clinic Proc 43:807, Gutrecht,J., 1968