Case Record of MGH
Medulloblastoma Metastasizing to Subarachnoid Space, NEJM 295:5531976., , 1976
Fourth Nerve Palsy:Historical Review and Study of 215 Inpatients
Neurol 43:2439-2443, Keane,J.R., 1993
Acquired Lesions of the Fourth Cranial Nerve
Brain 93:567, Berger,J.,et al, 1970