The rates of all and early SEMS dysfunction were 55% and 31%, respectively.

所有的和早期 自膨式金属支架（SEMS）功能障碍发生率分别为55%，31%。

Duodenal invasion is a risk factor for early SEMS dysfunction in patients with pancreatic cancer.

十二指肠入侵是胰腺癌患者早期自膨式金属支架功能障碍的危险因素之一。

To identify risk factors for early (<3 months) SEMS dysfunction in unresectable pancreatic cancer.

评估早期功能障碍发生率及其原因，并分析其危险因素。

'It certainly sems strange,' agreed the doctor, 'but wickedness can hide behind the most gentle face, you know.

“这件事看来确实挺奇怪的，”医生表示同意说，“可你也别忘了，邪恶是可能隐藏在善良的面貌背后的。”

Primary endoscopic removal of an SEMS is feasible in the majority of patients with benign and malignant esophageal disease.

对于大多数有良性和恶性食管病变患者来说，自膨式金属支架一次性内镜移除是可行的。

Objective:To evaluate the clinical efficacy of self-expanding metallic stent(SEMS)in treatment of benign or malignant esophageal strictures and fistulas.

目的：评价食管支架治疗食管良恶性狭窄和瘘的临床疗效，探讨食管支架放置成功的影响因素。

Products included are bolts, screws, studs, U-bolts, preassembled screw and washer assemblies (sems), and products manufactured the same as sems except without washer.

产品包括：螺栓、螺钉、螺柱、U型螺栓、预装配的螺钉和垫片组件以及与预装配组件一样加工的无垫圈产品。

Objective to assess the effects of self-expandable metallic stents (covered-SEMS) and percutaneous endoscopic gastrostomy (PEG) in the treatment of tracheoesophageal fistulas.

目的评估内镜下食管覆膜自膨式金属支架植入术与经皮内镜下胃造瘘术(PEG)在气管食管瘘治疗中的应用价值。