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Representative CT angiography images for different locations of the STA bifurcation point relative to the zygomatic arch. (A) The bifurcation point of the STA is above the upper edge of the zygomatic arch. (B) The bifurcation point is at the zygomatic arch. (C) The bifurcation is below the lower edge of the zygomatic arch. STA, superficial temporal artery.
