Exercise intolerance in patients with chronic coronary syndrome: insights from exercise stress echocardiography - Zhu, Wei-wei; Tian, Run-Yu; Guo, Di-chen; Lin, Ming-ming; Cai, Qi-zhe; Qin, Yun-yun; Ding, Xue-yan; Lv, Xiu-zhang (Frontiers in Cardiovascular Medicine, 2024)