《宽胸气雾剂用于冠脉复杂病变经皮冠状动脉介入治疗(PCI)围术期的有效性、安全性的多中心前瞻性双盲随机对照研究》课题可行性研讨 Feasibility Study on the Multi - center, Prospective, Double - blind, Randomized Controlled Study on the Efficacy and Safety of Kuanxiong Aerosol in the Peri - operative Period of Percutaneous Coronary Intervention (PCI) for Complex Coronary Artery Lesions