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Astals S, Ariso M, Galí A, Mata-Alvarez J.Astals S, et al.J Environ Manage. 2011 Apr;92(4):1091-6. doi: 10.1016/j.jenvman.2010.11.014. Epub 2010 Dec 22.J Environ Manage. 2011.PMID: 21183273