Ependymomas of the Posterior Cranial Fossa:CT and MRI Findings
Neuroradiology 37:238-243, Tortori-Donati,P.,et al, 1995
Subacute meningitis heralding a diffuse granulomatous angiitis: (Wegener's granulomatosis? )
Neurol, 27:2621977., Atcheson,S.G.,et al, 1977