痔上黏膜环切并选择性外剥内扎术治疗Ⅲ~Ⅳ度痔疗效观察
치상점막배절병선택성외박내찰술치료Ⅲ~Ⅳ도치료효관찰
Observation of the effect of procedure for prolapse and hemorrhoids and selective Milligan-Morgan hemorrhoidectomy in surgical treatment of Ⅲ ~ Ⅳ stage hemorrhoids
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