两种注射术治疗Ⅰ~Ⅱ度直肠脱垂的疗效和安全性比较
량충주사술치료Ⅰ~Ⅱ도직장탈수적료효화안전성비교
Comparison of efficacy and safety between two kinds of injection therapy in the treatment of Ⅰ-Ⅱ degree rectal prolapse
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