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Zhang YB, Quan X, Zhao HM, Chen S, Yang FL.Zhang YB, et al. Among authors: zhao hm.J Environ Sci (China). 2005;17(3):433-6.J Environ Sci (China). 2005.PMID: 16083118
Fu HB, Quan X, Chen S, Zhao HM, Zhao YZ.Fu HB, et al. Among authors: zhao hm, zhao yz.J Environ Sci (China). 2005;17(1):43-7.J Environ Sci (China). 2005.PMID: 15900755
Yang SG, Quan X, Li XY, Fang N, Zhang N, Zhao HM.Yang SG, et al. Among authors: zhao hm.J Environ Sci (China). 2005;17(2):290-3.J Environ Sci (China). 2005.PMID: 16295908