ABSTRACT Purpose: To develop and validate a trans oral endoscopic thyroidectomy vestibular approach (TOETVA) simulator. Methods: The first phase of the project consisted of designing and developing a transoral thyroid surgery simulator based on real surgeries. The product has the oral cavity for attaching the three trocars and the cervical part containing the thyroid and adjacent stru... https://foldlyers.shop/product-category/digital-multimeters/