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The settlement of trachea. (A) The thyroid gland was freed from sternothyroid muscle and trachea respectively. (B) Inferior parathyroid gland was identified and preserved with its vessel branches from the thymus. Thus, the settlement of trachea was completed with the en bloc resection of the thyroid gland and Level VIa. STM, sternothyroid muscle; TG, thyroid gland; IPTG, inferior parathyroid gland.
