The pain of angina is usually not as severe as the intense precordial crushing sensation associated with acute myocardial infraction . 心绞痛性疼痛，通常不如急性心肌梗塞时心前区挤压感觉那样剧烈。
2.
An efficient approach for blind separation of atrial fibrillation from precordial lead ecg 的心房颤动信号快速盲分离
3.
Influence of he - ne laser irradiation to precordial region for hemorrheology in rats 氖激光血管内照射治疗老年人睡眠障碍26例26
