S?n thù du - d??c li?u duy nh?t ???c ghi trong d??c ?i?n Vi?t Nam v? công d?ng t?ng c??ng thính l?c- ???c B? Y T? c?p phép l?u hành: ??m b?o ch?t l??ng, Hello?u qu? c?ng nh? an toànYour browser isn’t supported anymore. Update it to have the ideal YouTube experience and our most current capabilities. Find out moreDuy nh?t B?o Nh? V??ng k?t h