改良纵切横缝术加亚甲蓝肛门封闭注射治疗慢性肛裂142例临床分析
개량종절횡봉술가아갑람항문봉폐주사치료만성항렬142례림상분석
Improved longitudinal section transverse suture operation combined with compound methylene blue local-injection for chronic anal fissure: a clinical analysis of 142 cases
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