Spinal Dural Arteriovenous FistulasAJNR 30:639-648, Krings,T. &Geibprasert,S., 2009
MR Appearance of an Intracranial Dural Arteriovenous Fistula Leading to Cervical MyelopathyNeurol 51:1131-1135, Hahnel,S.,et al, 1998