老年二期胰十二指肠切除4例及一期联合结肠癌根治术1例
노년이기이십이지장절제4례급일기연합결장암근치술1례
An analysis of four cases of second-stage pancreaticoduodenectomy and one case of combined first-stage pancreaticoduodenectomy and sigmoid cancer radical operation in aged patients
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