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为了明确内科治疗冠状动脉患者的自然病程,对601例未经冠状动脉外科手术治疗的患者进行至少10年的随访。全组均以冠状动脉造影的日期作为随访的开始日期。
In order to clarify the natural history of medical treatment of patients with coronary artery, 601 patients without coronary artery surgery for at least 10 years of follow-up. The whole group were based on coronary angiography date as the follow-up start date.