内镜下钛夹、尼龙圈套辅助高频电切术治疗胃肠道巨大有蒂息肉的临床研究
내경하태협、니룡권투보조고빈전절술치료위장도거대유체식육적림상연구
Study on clinical of endoclipping, endoloop-assisted resection of large pedunculated polyps in gastrointestinal tract
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