Assessment of perioperative cardiac risk using preoperative quantitative flow ratio in patients with coronary artery disease undergoing noncardiac surgery: a retrospective cohort study

Ken Lin, Yimin Zhou, Weicheng Ni, Kun Guo, Yuanmiao Li, Jiayu Ke, Ling Cheng, Qingwei Ni, Sanling Shi, Yucheng Lu, Lingyue Sun, Hao Zhou