TY  - RPRT
TI  - Exploring the opioid system by gene knockout.
AU  - Brigitte L Kieffer
AU  - Claire Gavériaux-Ruff
PY  - 2002
DO  - 10.1016/s0301-0082(02)00008-4
UR  - https://pubmed.ncbi.nlm.nih.gov/12015197/
ID  - 12015197
ER  -