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. 2021 Nov 26;12:649426. doi: 10.3389/fneur.2021.649426

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Copyright © 2021 Ma, Song, Ma, Raynald, Shuai, Wu, Wan, Zhao, Li, Yin, Ding, Li, Jia, Tong, Mo, Gao, Sun, Deng, Huo, Li, Chen and Miao.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Before and after treatment with the rapamycin-eluting stent. (A) Left vertebral artery high-grade stenosis before placing a long 16 × 4.0 mm stent; (B) Immediately after implantation, demonstrating a wide-open arterial lumen with 4.5% residual stenosis; (C) 6-month follow-up angiogram showing approximately 12.7% restenosis; (D) Left vertebral artery high-grade stenosis before placing a long 16 × 4.0 mm stent; (E) Immediately after implantation, demonstrating a wide-open arterial lumen with 12% residual stenosis; and (F) 6-month follow-up angiogram showing approximately 57% restenosis.