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. 2015 Jul 20;10(7):e0133024. doi: 10.1371/journal.pone.0133024

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© 2015 Alonso-Sardón et al

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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Fig 3 — Labor-based wood exposure was compared with other occupational exposures. Test for overall effect: Z = 8.28 (P <0.0001). Test for heterogeneity: χ² = 46.17 (P <0.0001), I² = 85%.