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. 2011 Jul 20;26:e2011008. doi: 10.5620/eht.2011.26.e2011008

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© 2011 The Korean Society of Environmental Health and Toxicology

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Table 3.

Exposure factors of children by video and observation