Higham, J. P., Barr, C. S., Hoffman, C. L., Mandalaywala, T. M., Parker, K. J., & Maestripieri, D. (2011). Mu-opioid receptor (OPRM1) variation, oxytocin levels and maternal attachment in free-ranging rhesus macaques.

Higham, James P., Christina S. Barr, Christy L. Hoffman, Tara M. Mandalaywala, Karen J. Parker, och Dario Maestripieri. Mu-opioid Receptor (OPRM1) Variation, Oxytocin Levels and Maternal Attachment in Free-ranging Rhesus Macaques. 2011.

Higham, James P., et al. Mu-opioid Receptor (OPRM1) Variation, Oxytocin Levels and Maternal Attachment in Free-ranging Rhesus Macaques. 2011.