1. Overview of the endogenous opioid systems: Anatomical, biochemical and functional issues;Akil,1988
2. Properties of the CNS during the state of hibernation;Beckman,1982
3. On possible mechanisms of the septohippocampal system participation in the neural control of hibernation;Belousov,1993
4. Endogenous opioids and behavior;Brush,1989
5. Opioids and opioid receptors in thermoregulation;Burks,1991