Patients and METHODS: 100 patients with intermediate probability of bile duct stones were randomly allocated to EUS or ERC.
患者和方法：100例中等概率胆管结石患者被随机分配到EUS或ERC组。
Patients and METHODS: 100 patients with intermediate probability of bile duct stones were randomly allocated to EUS or ERC.
患者和方法：100例中等概率胆管结石患者被随机分配到EUS或ERC组。
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