PREVENTIVE TRANSORAL ENDOSCOPIC THYROIDECTOMY BY VESTIBULAR APPROACH IN 6-YEAR-OLD PATIENT WITH THE HIGH-RISK RET C634R GERMLINE MUTATION ArticlePanaseykin Y., Polkin V., Severskaya N., Isaev P., Iliyn A., Plugar A., Kupriyanova E., Ivanov S., Kaprin A.Case Reports in Oncology. Том 16. 2023. С. 963-971