Methods: The expressionof NOS positive cell in the gastric mucous of human fetus was observed by using immunohistochemical method.
用免疫组织化学法对人胎胃粘膜NOS 阳性细胞的表达进行观察。
2
Objective To observe the expressionof HBVDNA and if there were copy of HBVM in the thymus tissues of the died fetus that puerperal infection with hepatitis virus b.