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. 2020 Nov 25;92(4):370–376. doi: 10.1136/jnnp-2020-325027

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© Author(s) (or their employer(s)) 2021. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.

This is an open access article distributed in accordance with the Creative Commons Attribution Non Commercial (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, appropriate credit is given, any changes made indicated, and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/.

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Maximal stenosis distribution in 132 MCA-M1 plaques and 14 BA plaques by axial and longitudinal views. A darker colour indicates a higher frequency. Upper panel: frequencies of cases with the maximum plaque thickness located over the superior, inferior, ventral and dorsal walls of MCA-M1 (left); or over the ventral, dorsal and lateral walls of BA (right). Lower panel: frequencies of cases with the maximum plaque thickness located at the proximal, middle or distal one-third along the longitudinal axis of MCA-M1 (left) and BA (right) plaques. BA, basilar artery; MCA-M1, M1 middle cerebral artery.