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Chen Z, Wang X, Feng Z, Zheng F, Duan X, Yang W.Chen Z, et al. Among authors: feng z.J Environ Sci (China). 2008;20(3):320-5. doi: 10.1016/s1001-0742(08)60050-9.J Environ Sci (China). 2008.PMID: 18595399
Zhang WW, Niu JF, Feng ZZ, Wang XK, Tian Y, Yao FF.Zhang WW, et al.Huan Jing Ke Xue. 2011 Aug;32(8):2414-21.Huan Jing Ke Xue. 2011.PMID: 22619972Chinese.
Wang X, Zhang Q, Zheng F, Zheng Q, Yao F, Chen Z, Zhang W, Hou P, Feng Z, Song W, Feng Z, Lu F.Wang X, et al. Among authors: feng z.Environ Pollut. 2012 Dec;171:118-25. doi: 10.1016/j.envpol.2012.07.028. Epub 2012 Aug 11.Environ Pollut. 2012.PMID: 22892574