Intracranial Dural Arteriovenous Fistulas: Classification, Imaging Findings, and Treatment
AJNR 33:1007-1013, Gandhi, D.,et al, 2012
Cerebral Dural Arteriovenous Fistulas:Clin & Angiographic Correl with a Revised Class of Venous Drainage
Radiology 194:671-680, Cognard,C.,et al, 1995