清醒镇静与静脉麻醉在内窥镜逆行胰胆管造影术治疗肝外胆管结石中的比较研究
청성진정여정맥마취재내규경역행이담관조영술치료간외담관결석중적비교연구
Comparative study of conscious sedation and intravenous anesthesia used to endoscopic retrograde cholangio pancreatiography in treatment of extrahepatic bile duct stones
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