痔上黏膜环型切除术与外剥内扎术治疗重度痔疮的临床疗效对比观察
치상점막배형절제술여외박내찰술치료중도치창적림상료효대비관찰
Resection of Mucosal Ring on the Hemorrhoids and External Dissection and Ligation of the Treatment within the Comparative Observation of the Clinical Effect of Severe Hemorrhoids
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