RT Journal Article SR Electronic T1 Comfortably numb JF Journal of NeuroInterventional Surgery JO J NeuroIntervent Surg FD BMJ Publishing Group Ltd. SP 307 OP 308 DO 10.1136/jnis.2010.003939 VO 2 IS 4 A1 Robert W Tarr YR 2010 UL http://jnis.bmj.com/content/2/4/307.abstract AB