METHODS: Non-tumor nasopharyngeal biopsy specimens were used to culture for normal nasopharyngeal epithelial cells.
方法：非癌鼻咽活检标本体外培养用于建立鼻咽正常细胞；
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Methods Nasopharyngeal human squamous cells (CNE-2Z) were cultured and divided into the normoxia culture group (20% O2) and the hypoxia culture group (1% O2).
Nasopharyngeal swabs taken from 328 neonates with pneumonia were analyzed by LCR-ELISA and cell culture. Results A method of LCR-ELISA for detection C. trachomatis infection was established.