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. 2018 May 31;20(2):268–276. doi: 10.5853/jos.2018.00192

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Copyright © 2018 Korean Stroke Society

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted noncommercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Figure 2. — Comparison in angiographic outcomes between contact aspiration (CA) versus stent retriever (SR) first-line approaches according to susceptibility vessel sign (SVS) on magnetic resonance imaging in the Aspiration vs. Stent Retriever for Successful Revascularization (ASTER) trial. Values expressed as no./total no. (%) unless otherwise indicated. Risk ratios (RRs) were calculated using first-line SR group as reference, after pre-specified adjustment for center, and intravenous thrombolysis. P Het indicates P-values for heterogeneity in treatment effect size across SVS subgroup. CI, confidence interval; mTICI, modified thrombolysis in cerebral infarction; MT, mechanical thrombectomy.