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Xi BD, Liu HL, Zeng GM, Huang GH, Bai QZ.Xi BD, et al. Among authors: liu hl.J Environ Sci (China). 2002 Apr;14(2):264-8.J Environ Sci (China). 2002.PMID: 12046298
Xi BD, Liu HL, Huang GH, Zhang BY, Qin XS.Xi BD, et al. Among authors: liu hl.J Environ Sci (China). 2005;17(3):409-13.J Environ Sci (China). 2005.PMID: 16083113
Wei ZM, Xi BD, Wang SP, Xu JG, Zhou YY, Liu HL.Wei ZM, et al. Among authors: liu hl.J Environ Sci (China). 2005;17(6):953-6.J Environ Sci (China). 2005.PMID: 16465885
Wei ZM, Xi BD, Zhao Y, Wang SP, Xu JG, Liu HL.Wei ZM, et al. Among authors: liu hl.Huan Jing Ke Xue. 2006 Feb;27(2):376-80.Huan Jing Ke Xue. 2006.PMID: 16686209Chinese.
Wei ZM, Xi BD, Zhao Y, Wang SP, Liu HL.Wei ZM, et al. Among authors: liu hl.Guang Pu Xue Yu Guang Pu Fen Xi. 2007 Apr;27(4):735-8.Guang Pu Xue Yu Guang Pu Fen Xi. 2007.PMID: 17608186Chinese.
Wei ZM, Xi BD, Zhao Y, Wang SP, Liu HL, He LS, Jiang YH, Huo SL.Wei ZM, et al. Among authors: liu hl.Guang Pu Xue Yu Guang Pu Fen Xi. 2007 Nov;27(11):2275-8.Guang Pu Xue Yu Guang Pu Fen Xi. 2007.PMID: 18260412Chinese.
Xi B, Meng W, Huang G, Liu H, Zeng G, Yuan X, Wang Q, Bai Q.Xi B, et al.Huan Jing Ke Xue. 2003 Jan;24(1):157-60.Huan Jing Ke Xue. 2003.PMID: 12708310Chinese.