超声内镜联合内镜下多环黏膜切除术治疗食管黏膜下肿瘤的价值
초성내경연합내경하다배점막절제술치료식관점막하종류적개치
Value of endoscopic ultrasonography combined with endoscopic muti-band mucosectomy in the treatment of esophageal submucosal tumor
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