Abstract

References
1.
Ahmed M.S.
, &
Byrne W.L.
(1980 ) In: Endogenous and Exogenous Opiate Agonists and Antagonists. Ed.
Way E L
. Pergamon , New York ; pp 51 –54
2.
Herkenham M.
, &
Pert C.B.
(1980 ) Proceedings of the National Academy of Sciences (USA) 77 , 5532 –5536
3.
Krnjević K.
,
Puil E.
, &
Werman R.
(1977 ) Canadian Journal of Physiology and Pharmacology 55 , 670 –680
4.
Lawrence B.
, &
Livingston A.
(1981 ) British Journal of Pharmacology 73 , 43 5–442
5.
Levine J.D.
,
Gordon N.C.
, &
Fields H.L.
(1979 ) Nature 278 , 740 –741
6.
Sawynok J.
,
Pinsky C.
, &
La Bella F.S.
(1979 ) Life Sciences 25 , 1621 –1632
7.
Simmomis M.A.
(1978 ) British Journal of Pharmacology 63 , 495 –502
8.
Thomas T.A.
,
Fletcher J.E.
, &
Hill R.G.
(1981 ) British Journal of Anaesthesia (in press)
9.
Woolf C.
(1980 ) Brain Research 189 , 593 –597
10.
Yang J.C.
,
Crawford-Clark W.
, &
Ngai S.H.
(1980 ) Anesthesiology 52 , 414 –417
