TY  - RPRT
TI  - Morphine preference in rats previously morphine dependent.
AU  - S Dai
AU  - S C Hui
AU  - C W Ogle
PY  - 1984
DO  - 10.1016/s0031-6989(84)80018-1
UR  - https://pubmed.ncbi.nlm.nih.gov/6539922/
ID  - 6539922
ER  -