TY  - GEN
AU  - Esposito,R
AU  - Kornetsky,C
TI  - Morphine lowering of self-stimulation thresholds: lack of tolerance with long-term administration
SN  - 0036-8075
PY  - 1977///0216
KW  - Animals
KW  - Dose-Response Relationship, Drug
KW  - Drug Tolerance
KW  - Male
KW  - Morphine
KW  - administration & dosage
KW  - Rats
KW  - Self Stimulation
KW  - drug effects
KW  - Time Factors
N1  - Publication Type: Journal Article; Research Support, U.S. Gov't, Non-P.H.S
UR  - https://doi.org/10.1126/science.831268
ER  -