Objective: Observation after urethra holmium laser lithotrity treatment ureter upside stone clinical curative effect and security.

目的: 观察经尿道钬激光碎石术治疗输尿管上段结石的临床疗效及安全性.

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Objective : To observe clinical effect and complications of treating ureterolith through aerodynamic trajectory lithotrity by ureterorenoscope ( URS ).

目的: 观察经输尿管肾镜行气压弹道碎石治疗输尿管结石的临床疗效及并发症.

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