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本文应用血管组织学和免疫学方法对人脐动脉的三种不同处理方案（包括新鲜、冻干和冻干辐照）进行比较，为临床应用小口径血管移植材料——人脐动脉选择最佳处理方案提供依据。资料和方法人脐动脉分为三组：l组（新鲜组）无菌条件下剥离、冲洗；三组（冻干组）在一10℃下冻干；
In this paper, vascular histology and immunological methods of human umbilical artery three different treatment programs (including fresh, lyophilized and lyophilized irradiation) were compared for the clinical application of small diameter vascular graft material - the best choice for human umbilical artery Provide a basis for treatment programs. MATERIALS AND METHODS Human umbilical arteries were divided into three groups: Group 1 (fresh group) was stripped and rinsed under aseptic conditions; three groups (lyophilized group) were lyophilized at 10 ° C;