经内镜黏膜下隧道肿瘤切除术治疗上消化道黏膜下肿瘤的应用研究
경내경점막하수도종류절제술치료상소화도점막하종류적응용연구
Application study on submucosal tunneling endoscopic resection for upper gastrointestinal submucosal tumors
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