Efficacy and safety of multi-loop traction device-assisted colorectal endoscopic submucosal dissection: Multicenter randomized clinical trial di Mamoru Ito, Yuko Miura, Yasuhiko Mizuguchi, Hiroto Furuhashi, Yosuke Tsuji, Hiroyuki Takamaru, Naoto Tamai, Mitsuhiro Fujishiro, Yutaka Saito, Kazuki Sumiyama

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