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Table 1 Detailed inclusion and exclusion criteria for ETBAA

From: Comparison of parathyroid hormone kinetics in endoscopic thyroidectomy via bilateral areola with open thyroidectomy

Selection and Exclusion criteria

Selection criteria

 Papillary thyroid cancer with low-risk factorsa

 Dominant benign nodule with a diameter < 5 cm, whereas cystic nodule could be 6 cm or greater

 The patients needed a cosmetic requirement

Exclusion criteria

 General factors

  Obesity and stocky neck

  Clinical history of radiation or surgery on the neck or chest

  Preoperative dysfunction of voice cord

 Thyroid-related factors

  Advanced cancer

  Local invasion

  Posteriorly located lesions

  Diffuse or adhesion or fixation enlargement of lymph node

  Evidence available of local or distant metastases

  Graves’ disease

  Severe thyroiditis

  Associated parathyroid disease

  1. aLow risk factors including lesion size < 4 cm, age < 55 years, no prior radiation, no distant metastases, no lymph node metastases, no extrathyroidal extension, no aggressive variant, and no first-degree family history of thyroid carcinoma