RT Journal Article SR Electronic T1 Toward Understanding the Neurobiology of Social Attachment: Role of Estrogen Receptors in the Medial Amygdala JF The Journal of Neuroscience JO J. Neurosci. FD Society for Neuroscience SP 1 OP 2 DO 10.1523/JNEUROSCI.5193-08.2009 VO 29 IS 1 A1 Viviana Trezza A1 Patrizia Campolongo YR 2009 UL http://www.jneurosci.org/content/29/1/1.abstract AB