多普勒引导下痔动脉结扎术结合保留齿状线痔切除术治疗环形混合痔
다보륵인도하치동맥결찰술결합보류치상선치절제술치료배형혼합치
Doppler-guided hemorrhoidal artery ligation combined with retaining dentate line hemorrhoidectomy in treatment of ring mixed hemorrhoids
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