Clinicopath ConfProgressive Multifocal Leukoencephalopathy, Chronic Lymphocytic Leukemia, Case Record 45-1988, NEJM, 19:8-1280,1988., 1988
Neurologic Manifest. of Infective Endocarditis:A ReviewStroke 4:958, Greenlee,J.E.,et al, 1973