RT Journal Article SR Electronic T1 022 ABO blood group analysis in cerebral dural arteriovenous fistulae JF Journal of NeuroInterventional Surgery JO J NeuroIntervent Surg FD BMJ Publishing Group Ltd. SP 97 OP 97 DO 10.1136/jnis.2009.000869v VO 1 IS 1 A1 E Murphy A1 J Pryor YR 2009 UL http://jnis.bmj.com/content/1/1/97.1.abstract AB