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. Author manuscript; available in PMC: 2012 Feb 13.
Published in final edited form as: Evol Hum Behav. 2012 Jan;33(1):42–45. doi: 10.1016/j.evolhumbehav.2011.05.004

Fig. 3.

Fig. 3

Urinary oxytocin in girls using instant messages to communicate via instant message is also similar to that in girls who have no interaction with their parents at all and is unlike the higher levels observed in girls able to touch or hear the sound of their parents’ voice. Urinary oxytocin is pg/mg creatinine.