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Extralaryngeal terminal bifurcation of both recurrent laryngeal nerves (RLN). Right (a) and left (b) sides of the same patient. Bifurcation points (*) are located in the same (pre-arterial) segments along cervical course of the nerve. ITA: Inferior thyroid artery. AB: Anterior branch. PB: Posterior branch. (*) Bifurcation point. (+) Neuro-vascular (RLN and ITA) crossing
