结论该手术安全、有效，适宜于难治性输尿管上段结石的治疗。

Conclusion This operation is safe and effective. It's suitable for the treatment of refracto…

youdao

结论该手术安全、有效，适宜于难治性输尿管上段结石的治疗。

Conclusion This operation is safe and effective. It's suitable for the treatment of refracto…

youdao