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. 2013 Sep 25;8(9):e74849. doi: 10.1371/journal.pone.0074849

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© 2013 Xu 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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Median value for each group is shown by a horizontal bar. Elevated plasma testosterone levels were found in mothers of autistic children as compared to mothers of normal children (A). Plasma estradiol levels showed no difference between the two groups (B). AM: mothers of autistic children; NM: mothers of normal children; TSTO: testosterone; E2: estradiol.