TY  - RPRT
TI  - Pharmacodynamics of opioids: recent developments.
AU  - G Folkers
AU  - M Michael
PY  - 1994
DO  - 10.1016/0031-6865(94)90002-7
UR  - https://pubmed.ncbi.nlm.nih.gov/7809173/
ID  - 7809173
ER  -