Effects of morphine sulfate on operant behavior in rhesus monkeys
1991 ◽
Vol 38
(1)
◽
pp. 77-83
◽
Keyword(s):
Keyword(s):
1995 ◽
Vol 50
(4)
◽
pp. 641-648
◽
1978 ◽
Vol 92
(5)
◽
pp. 837-845
◽
1978 ◽
Vol 92
(5)
◽
pp. 846-855
◽
Keyword(s):