RT Journal Article SR Electronic T1 The semiotics of distal thrombectomy: towards a TICI score for the target vessel JF Journal of NeuroInterventional Surgery JO J NeuroIntervent Surg FD BMJ Publishing Group Ltd. SP 213 OP 214 DO 10.1136/neurintsurg-2018-014353 VO 11 IS 3 A1 Alejandro M Spiotta A1 David Fiorella A1 Adam S Arthur A1 Donald Frei A1 Aquilla S Turk A1 Joshua A Hirsch YR 2019 UL http://jnis.bmj.com/content/11/3/213.abstract AB