TY  - RPRT
TI  - Facilitative interactions between vasoactive intestinal polypeptide and receptor type-selective opioids: implications for sensory afferent regulation of spinal opioid action.
AU  - Nai Jiang Liu
AU  - Alan R Gintzler
PY  - 2003
DO  - 10.1016/s0006-8993(02)03734-4
UR  - https://pubmed.ncbi.nlm.nih.gov/12480163/
ID  - 12480163
ER  -