Fig. 3From: Evaluation of the clinical value of carbon nanoparticles in endoscopic thyroidectomy and prophylactic central neck dissection through total mammary areolas approach for thyroid cancerExposure of the parathyroid glands. A Exposure of the inferior parathyroid gland with CN. B Exposure of the inferior parathyroid gland without CN. C Exposure of the superior parathyroid gland with CN. D Exposure of the superior parathyroid gland without CNBack to article page