Methods:The expression of p-ERK of 30 normal villi and 30 natural abortive villi of human early pregnancy was examined by immunohistochemistry technology and image analysis.

• 方法:采用免疫组织化学、图像分析方法检测30例正常早孕绒毛组织(正常早孕组)和30例自然流产的早孕绒毛组织(自然流产组)中p-ERK的表达水平。