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. Author manuscript; available in PMC: 2014 Mar 5.
Published in final edited form as: Biol Psychiatry. 2010 Mar 31;68(4):377–382. doi: 10.1016/j.biopsych.2010.02.005

Figure 2.

Figure 2

Correlation between maternal oxytocin and mother’s affectionate play A and between paternal oxytocin and father’s stimulatory play B. OT, oxytocin.