A fetus of 20 weeks gestation or a fetus weighing 500 gm is considered abortus.
胎儿孕周小于20周或胎儿体重小于500克的称为流产胎.
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Study on rapid detection technique of DNA in Brucella abortus from dairy cows with brucellosis
乳牛布鲁氏菌病病原DNA快速检测技术的研究
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Expression of EGF receptor ( EGFR) in the abortus was studied with immunohistochemical method.
同时采用免疫组织化学法检测流产者胚胎组织中表皮生长因子受体（EGFR）表达程度。
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Construction of mutant Brucella Abortus S19 strain and evaluation of immunization in mice
流产布氏杆菌S19突变株构建及在小鼠感染模型中的免疫保护评估
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Study on Suspension Culture of Hybridoma Cell A7 Secreting McAb of Brucella abortus
分泌牛种布鲁氏菌单克隆抗体杂交瘤细胞A7的悬浮培养研究
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胚胎组织中EGFR阳性表达率人工流产组明显高于自然流产组（P＜0.05）。
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R-fraction as a Biological Principle in the Natural S. abortus equi Endotoxin Preparation
R亚组分为天然马流产沙门氏菌内毒素制剂中的生物学活性成分
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