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Surgical exposure of the right internal jugular vein (IJV). (A) Ex vivo visualization of the IJV after the contralateral traction of the strap muscles (SM) overlying the trachea (Tr). (B) In vivo high-magnification image of the neurovascular bundle in the neck. (1) Carotid artery, (2) vagus nerve, (3) IJV, and (4) the tissue fold that includes the bundle
