Ependymomas of the Posterior Cranial Fossa:CT and MRI Findings
Neuroradiology 37:238-243, Tortori-Donati,P.,et al, 1995
Short-Lasting Unilateral Neuralgiform Headache Atacks with Tearing & Conjunctival Injection:First"Symptomatic"Case
Cephalalgia 11:123-127, Bussone,G.,et al, 1991