目的了解早期复极综合征（ERS）并心前区疼痛的心电图特征及其意义。
Objective To investigate ECG features of early repolarization syndrome(ERS) with precordialgia.
目的：观察心前区疼痛刺激对急性心梗大鼠心梗范围的影响。
Objective: To observe the effects of precordial pain stimulation on the acute myocardial infarction (AMI) range in experimental rats.
本实验用两种不同剂量的激光照射小白鼠心前区，从组织形态方面观察心肌血管的变化。
After the mice were radiated in front heart area by laser with two different dosages, the morphology change of the blood vessels of the myocardium was observed.
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