Methods:The frozen sections of placental tissue from 19 health pregnant women were analyzed by using anti-GM-CSF and anti-G-CSF monoclonal antibodies and immunohistochemical technique.

• 方法：应用抗粒单核细胞集落刺激因子(GM-CSF）和抗粒细胞集落刺激因子(G-CSF)的单克隆抗体对19例健康产妇足月分娩的胎盘组织的冰冻切片进行免疫组织化学染色。