%0 Journal Article %A Thabele Leslie-Mazwi %A Ronil V Chandra %A Blaise W Baxter %A Adam S Arthur %A Muhammad S Hussain %A I Paul Singh %A Don F Frei %A Richard P Klucznik %A Felipe C Albuquerque %A Joshua A Hirsch %A , %T ELVO: an operational definition %D 2018 %R 10.1136/neurintsurg-2018-013792 %J Journal of NeuroInterventional Surgery %P neurintsurg-2018-013792 %U https://jnis.bmj.com/content/neurintsurg/early/2018/02/08/neurintsurg-2018-013792.full.pdf