RT Journal Article SR Electronic T1 Commentary about a 20th meta-analysis JF Journal of NeuroInterventional Surgery JO J NeuroIntervent Surg FD BMJ Publishing Group Ltd. SP e19 OP e19 DO 10.1136/neurintsurg-2020-017234 VO 13 IS 9 A1 Houdart, Emmanuel YR 2021 UL http://jnis.bmj.com/content/13/9/e19.abstract AB