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. 2014 Aug 11;8:268. doi: 10.3389/fnbeh.2014.00268

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Copyright © 2014 van Vugt, Meyer, van Hulten, Vernooij, Cools, Verheij and Martens.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Apomorphine-induced gnawing of APO-SUS (A) and APO-UNSUS (B) mothers after fostering their own pups (white bars) or fostering pups from their phenotypic counterpart (black bars). * p < 0.05.