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[ 수술과정 ] : Under General anesthesia, the patient was prepared and draped as recommended. Curvilinear incision was made along the skin crease just above to the lower neck margin. Median line was explored and strap muscles were spreaded to expose thyroid glands. pilateral or bilateral thyroid glands were excised while important recurrent laryngeal nerve, SLN, and parathyroid glands were saved if possible in order not to compromise oncologic outcome. Right after applying antiadhesion gel and coagul