FDA approval is reserved for merchandise which can be brand-new treatment plans, and carry the greatest amount of threat. Commonly, these products are Course III Professional medical Devices and undergo a very rigorous evaluation procedure.?? gi?i quy?t toàn b? nh?ng th?c m?c hay là khi?u n?i c?a b?n m?t cách chu?n nh?t.N?u nh? b?n mu?n s? d?ng