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Porthé V, Ahonen E, Vázquez ML, Pope C, Agudelo AA, García AM, Amable M, Benavides FG, Benach J; ITSAL Project.Porthé V, et al. Among authors: vazquez ml.Am J Ind Med. 2010 Apr;53(4):417-24. doi: 10.1002/ajim.20781.Am J Ind Med. 2010.PMID: 20213673