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. 2020 Jan 17;23(1):20–24. doi: 10.1016/j.cjtee.2019.12.002

Fig. 1.

Fig. 1

Computed tomography angiography and intraoperative photographs of the procedure. Supraorbital eyebrow keyhole approach. (A) Open A2 plane; (B) Closed A2 planes4.