TY  - RPRT
TI  - Schedule-controlled behavior in the morphine-dependent rat.
AU  - R D Ford
AU  - R L Balster
PY  - 1976
DO  - 10.1016/0091-3057(76)90199-4
UR  - https://pubmed.ncbi.nlm.nih.gov/986048/
ID  - 986048
ER  -