(Q34238651)
Statements
Intermediate efficacy mu opioids: examination of their morphine-like stimulus effects and response rate-decreasing effects in morphine-tolerant rats (English)
M. J. Picker
R. M. Craft
S. S. Negus
K. R. Powell
S. R. Mattox
S. R. Jones
B. K. Hargrove
L. A. Dykstra
1 November 1992