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. 2021 May 16;9(14):3356–3364. doi: 10.12998/wjcc.v9.i14.3356

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©The Author(s) 2021. Published by Baishideng Publishing Group Inc. All rights reserved.

This article is an open-access article that was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution NonCommercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/Licenses/by-nc/4.0/

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Cerebral angiography on the day of admission. A: Right vertebral artery angiography; B: Lateral angiography of the right vertebral artery; C: Anterior angiography of the left vertebral artery; D: Lateral angiography of the left vertebral artery; E: Right internal carotid artery angiography; F: Lateral angiography of the right internal carotid artery; G: Angiography of the left internal carotid artery; H: Lateral angiography of the left internal carotid artery; I: Right external carotid artery angiography anteroposterior; J: Lateral angiography of the right external carotid artery; K: External left carotid artery angiography anteroposterior; L: Lateral angiography of the left external carotid artery.