Lymphocytes of spleen and intraepithelial lymphocyte (IEL) were counted.

分离脾和IEL进行淋巴细胞计数。

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To investigate the local cellular immunity in the respiratory tract, the numbers of intraepithelial lymphocyte (IEL) and the level of IL-2 in tracheas were detected;

通过检测气管上皮内淋巴细胞（IEL）数量和气管白介素-2（IL-2）水平来探讨鼻腔免疫对气管局部细胞免疫的影响；

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