Normal esophageal tissue(10 cases)and gastric tissue(8 cases)served as the control group.
正常食管组织10例、胃组织8例作为对照组。
Methods Thirty women with early spontaneous abortion served as an experimental group and 30 women who had artificial abortion for normal early pregnancy served as a control group.
方法 随机选 择早孕胚胎停育患者30 例作为实验组，正常早孕人工流产者30 例为对照组。
Methods Thirty women with early spontaneous abortion served as an experimental group and 30 women who had artificial abortion for normal early pregnancy served as a control group.
方法 随机选 择早孕胚胎停育患者30 例作为实验组，正常早孕人工流产者30 例为对照组。
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