³í¹®) Single Surgeon Experience with 500 Cases of the Robotic Bilateral Axillary Breast Approach (BABA) for Thyroid Surgery Using the Da-Vinci Xi System ÀÎÇϴ뺴¿ø À¯¹æ°©»ó¼±¿Ü°ú ÀÌÁø¿í ±³¼ö(»çÁø)