TY  - GEN
AU  - Solomon,R E
AU  - Goodrich,J E
AU  - Katz,J L
TI  - Opioid receptor subtype-specific cross-tolerance to the effects of morphine on schedule-controlled behavior in mice
SN  - 0033-3158
PY  - 1989///0412
KW  - Animals
KW  - Conditioning, Operant
KW  - drug effects
KW  - Cyclazocine
KW  - analogs & derivatives
KW  - Drug Tolerance
KW  - Enkephalin, Methionine
KW  - pharmacology
KW  - Ethylketocyclazocine
KW  - Ketamine
KW  - Levorphanol
KW  - Male
KW  - Mice
KW  - Morphine
KW  - Receptors, Opioid
KW  - Reinforcement Schedule
N1  - Publication Type: Journal Article; Research Support, U.S. Gov't, P.H.S
UR  - https://doi.org/10.1007/BF00177563
ER  -