Toxoplasmosis of the Central Nervous System in the Acquired Immunodeficiency Syndrome
NEJM 327:1643-1648, Porter,S.B.&Sande,M.A., 1992
Intracranial Amebic Abscesses:CT and MR Findings
J Comput Assist Tomogr 15:168-170, Dietz,R.,et al, 1991
Trypanosoma Cruzi in the Cerebrospinal Fluid During the Acute State of Chagas'Disease
NEJM 298:604, Hoff,R.,et al, 1978