- Review
Molecular Perspectives for mu/delta Opioid Receptor Heteromers as Distinct, Functional Receptors
- Edmund W. Ong and
- Catherine M. Cahill
Opioid receptors are the sites of action for morphine and the other opioid drugs. Abundant evidence now demonstrates that different opioid receptor types can physically associate to form heteromers. Understandings of the nature, behavior, and role of...

