Severe angina pectoris and ischemic electrocardiographic changes following ablation of premature ventricular contractions at the left coronary cusp是什么意思_Severe angina pectoris and ischemic electrocardiographic changes following ablation of premature ventricular contractions at the left coronary cusp在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句