Infections of the Nervous System, (Bacterial, Fungal, Spirochetal, Parasitic) and Sarcoidosis, Whipple Disease
Adams & Victors Principles of Neurology, Chp 32, pg 710, Ropper, A.H.,et al, 2014
Neurology:An Annotated Bibliography of Recent Literature
Ann Int Med 91:658-663, , 1979