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. 2011 Dec 14;11:101. doi: 10.1186/1471-2393-11-101

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Copyright ©2011 Venditti et al; licensee BioMed Central Ltd.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Dose responses of maternal/fetal Hb and CO levels to increasing maternal exogenous CO exposure. A positive trend was observed with both maternal and fetal blood %COHb vs. CO concentration exposure (A). A positive trend was observed with both maternal and fetal Hb vs. CO concentration exposure (B).The slope of the line significantly deviated from zero in both cases, A and B (p < 0.05).