微创经皮肾取石术治疗上尿路结石中X线与B超定位的比较研究
미창경피신취석술치료상뇨로결석중X선여B초정위적비교연구
Comparision of minimally invasive percutaneous niphrolithotomy combined with positioning and monitoring of ultrasound in the treatment of upper urinary calculi
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