Keywords：专著资料, 全文在线浏览, 脱发的中医治疗2005.10.21
Section Index
Further Discussion on the ECG of Myocardial Infarction 2002.1.2
① ST segment elevation, arching upward, reflects myocardial injury and appears several hours after onset, usually recovering within 3–10 days. ② Q waves or QS waves reflect myocardial necrosis and appear within 12 hours; once abnormal Q waves appear, they often persist permanently, though in some patients they may suddenly disappear after years or months.
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