Effect of Kuanxiong Aerosol on Perioperative Coronary Microcirculation in Patients with Unstable Angina Undergoing Elective PCI: A Pilot Randomized Controlled Trial. - Liu ZH; Xing WL; Liu HX; Shang JJ; Li AY; Zhou Q; Zhang ZM; Li ZB; Chen KJ (Chinese journal of integrative medicine, 2025)