1. Opiates;Lenz,1987
2. Opioid Analgesics;Casy,1986
3. Brainstorming: The Science and Politics of Opiate Research;Snyder,1989
4. L. S. Harris, “Problems of Drug Dependence, 1988”, NIDA Research Monograph 90, U. S. Dept. of Health and Human Services, Washington, D. C. (1988).
5. Anatomy of CNS opioid receptors