1. The integrative neurobiology of affiliation;Bekkedal,1997
2. Brain, Mind, and Behaviour;Bloom,1988
3. Epidemiological study of blood pressure in domestic dogs;Bodey;Journal of Small Animal Practice,1996
4. An Introduction to Neuroendocrinology;Brown,1994
5. Integrative functions of lactational hormones in social behavior and stress management;Carter,1997