目的：探讨鼻窦内窥镜手术眼眶并发症的原因及预防。
Objective: To study the reasons and prevention for orbit complications of the endoscopic sinus surgery.
目的：探讨新生儿消化道出血的临床相关原因及预防。
Objective: To discuss clinical relative factors and prevention of gastrointestinal hemorrhage in neonate.
目的：探讨胆囊切除术后的胆囊床大出血的原因及预防。
Objective: to study the causes and prevention of massive hemorrhage of gallbladder bed after cholecystectomy.
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