冠状动脉血管痉挛能造成一个暂时的，突然的，显着的心外冠状动脉内径的减少。
Coronary artery vasospasm can cause a transient, abrupt, marked decrease in the diameter of an epicardial coronary artery.
近来有研究通过血管造影测量方法显示，冠状动脉内径与身高及体重相关，因此倾向于支持这种假设。
In recent studies using angiographic measurements, the coronary artery diameter was correlated with height and body weight, so there might be a point to it, "she tells WebMD."
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