Fig. 4From: Comparison of parathyroid hormone kinetics in endoscopic thyroidectomy via bilateral areola with open thyroidectomyComparative analysis for parathyroid location and strategy. A1, parathyroid gland is attached to the surface of thyroid gland; A2, parathyroid gland partially or completely embedded in the thyroid gland, but located outside the inherent capsule of the thyroid; A3, the parathyroid gland is completely located in the thyroid tissue. B is distant from the thyroid gland, which is easier to preserve in situ. T, Intraoperative auto-transplantation of parathyroid gland. #P, Comparisons of groups between ETBAA and OTA-HBack to article page