All of the study participants had chest pain or other potential symptoms of coronary artery disease, and underwent angiography to look for blockages in the heart arteries.

• 所有参与研究的妇女都有胸痛或者其它冠状动脉疾病的潜在症状，都曾经进行过血管造影术以确认是否有心脏动脉堵塞。