外剥内扎术联合直肠黏膜注射术治疗环状混合痔237例的临床观察
외박내찰술연합직장점막주사술치료배상혼합치237례적림상관찰
Clinical observation of Milligan-Morgan hemorrhoidectomy combined with rectal submucosal injection in the treatment of circumferential mixed hemorrhoids in 237 cases
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