B?nh vi?n kh?p c? n??c ?ua nhau mua trang thi?t b? m?i, xin vay ??c bi?t hàng tr?m t?  Gi?i m?i (bao g?m t?t c? gi?i nào có s? thay ??i, c?p nh?t m?i ho?c ?i?u ch?nh) Essential measurements: Electricity waveforms with numerical values which include resistance, diode,