No abstract available
Publication types
-
Research Support, U.S. Gov't, P.H.S.
MeSH terms
-
Adult
-
Endorphins / cerebrospinal fluid*
-
Enkephalins / cerebrospinal fluid*
-
Humans
-
Male
-
Methods
-
Pain / cerebrospinal fluid
-
Receptors, Opioid / drug effects
Substances
-
Endorphins
-
Enkephalins
-
Receptors, Opioid