Sex differences in the neural and behavioral response to intranasal oxytocin and vasopressin during human social interaction - James K. Rilling; Ashley C. DeMarco; Patrick D. Hackett; Xu Chen; Pritam Gautam; Sabrina Stair; Ebrahim Haroon; Richmond R. Thompson; Beate Ditzen; Rajan Patel; Giuseppe Pagnoni (2013)