封闭式负压吸引 (VSD)在Mile's直肠癌根治术术中会阴部切口应用的临床研究
봉폐식부압흡인 (VSD)재Mile's직장암근치술술중회음부절구응용적림상연구
The clinical research for application of vacuum sealing drainage(VSD) in perineal incision during Mile's radical resection of rectal cancer
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