结果增殖细胞核抗原在人牙齿发育各阶段具有不同的表达模式。
RESULTS Proliferating cell nuclear antigen had different distribution in each stage during human teeth development.
方法：制备人牙齿发育各阶段标本，进行神经生长因子及其受体的免疫组化研究。
Methods: After preparing specimens of every stage of human developing teeth, immunohistochemical staining of nerve growth factor and its receptor was carried on.
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