Study on the Application of Convenient Foot-control Exhaust Method in Endoscopic Thyroidectomy

Conditions:   Thyroid Cancer;   Papillary Thyroid Carcinoma;   Thyroidectomy;   Endoscopy
Interventions:   Device: used of the Pressure adjustable foot-control method;   Device: direct exhaust
Sponsor:   wangbo
Recruiting

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