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Zheng, Jingtong, Shi, Yue, Wang, Guoqiang, Wang, Fang, Xiong, Lingxin, Zhang, Weijie, Li, Ying, Gibson, Peter G., Simpson, Jodie L., Zhang, Chao, Lu, Junying, Sai, Jingying. Hindawi Publishing; 2017. The expression of IL-6, TNF-α and MCP-1 in respiratory viral infection in acute exacerbations of chronic obstructive pulmonary disease.