The ratio of EMG and MRI in diagnosis of tearing of nerve roots of brachial plexus before surgery is 55. 56% and 68. 52% respectively, and the combination of the two can increase the ratio to 85. 19%.是什么意思_The ratio of EMG and MRI in diagnosis of tearing of nerve roots of brachial plexus before surgery is 55. 56% and 68. 52% respectively, and the combination of the two can increase the ratio to 85. 19%.在线翻译_英语_读音_用法_例句