Spinal Dural Arteriovenous Fistulas
AJNR 30:639-648, Krings,T. &Geibprasert,S., 2009
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Neurol 58:1279-1281, Khurana,V.G.,et al, 2002
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Neurol 50:517-519, Hemphill III,J.C.,et al, 1998