经内镜逆行胰胆管造影治疗85岁以上胆总管结石患者的效果观察
경내경역행이담관조영치료85세이상담총관결석환자적효과관찰
Safety and efficacy of therapeutic endoscopic retrograde cholangiopancreatography in very elderly patients (85 years or older) with common bile duct stones
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