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. 2012 Sep 27;7(9):e45294. doi: 10.1371/journal.pone.0045294

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© 2012 Pisaneschi 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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Umbilical vein and artery levels of NO₂ (A, B), NOHb (C, D) and ADMA (E, F) at different BW centiles: 75^th–25^th (black circles); <25^th–10^th (black and white circles); <10^th–3^rd (white circles); <3^rd (white squares). Dashed line presents the exponential or linear relationship between these variable and BW. *p<0.05; **p<0.01; ***p<0.001.