Progressive Multifocal Leukoencephalopathy: Epidemiology, Clinical Manifestations, and Diagnosis
www.UptoDate.com, May, Koralnik, I.J., 2018
Clinicopathologic Conference, Cerebellar Ataxia, Neuropathy and Vestibular Areflexia Syndrome
NEJM 385:165-175, Case 20-2021, 2021
Primary position upbeat nystagmus:a Clinicopathologic Study
Neurol 27:294, Gilman,N.,et al, 1977
Acquired Pendular Nystagmus with Oscillopsia in Multiple Sclerosis:A Sign of Cerebellar Nuclei Disease
JNNP 37:570, Aschoff,J.C.,et al, 1974