Research on parameters optimization of bilateral ring gear blank-holder in thick-plate fine blanking von Su, C.J., Dong, X.H., Guo, S.M., L.Li, Q., Li, T.T.

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IP-4 Comparison of endoscopic submucosal dissection and endoscopic piecemeal mucosal resection for superficial esophageal squamous cell neoplasms larger than 15 mm von Q.-L.Li, P.-H.Zhou, L.-Q.Yao

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IP-5 Submucosal tunneling endoscopic resection for submucosal tumors in upper gastrointestinal tract : a feasibility study of 290 consecutive patients von Q.-L.Li, P.-H.Zhou, M.-D.Xu, L.-Q.Yao

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Initial atmospheric corrosion of zinc in the presence of NH4Cl von Qu, Q, Yan, C W, Li, L, Zhang, L, Liu, G H, Cao, C N

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